Checking with the traditional publishing houses is a good idea.
It should be noted that when Pope Paul VI issued the new missal in 1969 there was no real change in the liturgical seasons, they remained the same (as did as the liturgical colors, with a couple of exceptions during Holy Week) as they were before the new missal, except for the terminology “Sundays (weeks) after Epiphany” between Epiphany and Lent, and “Sundays (weeks) after Pentecost” between Pentecost and Advent, which is now called “Ordinary Time” in the calendar (I prefer the former phraseology).
The calendar was changed, feasts and memorials were moved to other dates (Christ the King is now the last Sunday of the liturgical year, it was celebrated earlier on the pre VII calendar), and some observations were transferred from a fixed date or day to a Sunday (Epiphany and Corpus Christi are examples). Still, the basic scheme, if you will, remains the same.
The liturgical year begins with the First Sunday of Advent, where the liturgical color is purple or violet (except the Third Sunday of Advent, Gaudete Sunday, when rose vestments may be worn.
The Christmas Season (white vestments), which runs through the feast of The Baptism of Our Lord, which is January 13 on the pre VII calendar, and the third Sunday after Christmas on the post VII calendar.
The time between the Christmas Season and Lent was known as the Time after Epiphany, and is now Ordinary Time. The liturgical color is green.
The biggest difference, that I am aware of, occurs around Lent.
In the Novus Ordo cycle, Ordinary Time (green) runs from Epiphany until the beginning of Lent (Ash Wednesday). Lent is from Ash Wednesday until Palm Sunday, and the liturgical color is purple.
On the pre VII calendar there are three “sub divisions” of this time:
I. A three week preparatory time before Lent called The Season of Septugesima, and the three Sundays are named Septuagesima, Sexagesima, and Qinquagesima. The liturgical color during these three weeks is purple.
II. Lent, beginning on Ash Wednesday
III. Passion Time, from Passion Sunday (the Fifth Sunday of Lent on the Novus Ordo calendar), the Sunday before Palm Sunday, until Holy Thursday.
The Fourth Sunday of Lent is known as (Laetare Sunday), when rose may be worn, in either scheme.
After Holy Week begins the Easter Season (seven weeks), which runs until Pentecost. The liturgical color is white until Pentecost, when it is red.
The Novus Ordo calendar begins Ordinary Time (green) on the Monday after Pentecost, while the pre VII calendar observes an octave, then begins the Time after Pentecost (green).
The Sunday after Pentecost is Trinity Sunday (white) on both calendars. The Novus Ordo calendar observes the Solemnity of The Most Holy Body and Blood of Christ (white) on the Sunday after Trinity Sunday. The pre VII calendar observes the feast of Corpus Christi (white) on the Thursday after Trinity Sunday.
These Sundays (weeks) after Pentecost, or Ordinary Time, continue until the First Sunday of Advent. The liturgical color is green, except when a memorial or feast indicates another color (white or red, or black on All Souls day).
I am thinking of making a day trip to Spokane, WA tomorrow (Friday July 16), and if I do I hope to also visit Mount St. Michael’s (the former scholasticate for the Oregon Province of the Society of Jesus), which is now the CMRI parish and school there (if I don’t make the trip tomorrow I will be sometime this summer). They have book store, and I can inquire of the sisters about how to find the chart you are looking for, and report back.