What is the name of the Astrology book where you match two birthdays?

The book has every combination of birth-dates possible. From the 80’s or 90’s I believe. For example, you could match March 20th and November 3rd to see if two people born those days were compatible.

"The Secret Language of Relationships: Your Complete Personology Guide to Any Relationship with Anyone" by Gary Goldschneider and Joost Elffers, published by Penguin Studio

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