Style de citation APA (7e éd.)

Crawford, S., & Sullivan, G. (1998). The power of birthdays, stars, & numbers: The complete personology reference guide. Ballantine Books.

Style de citation Chicago (17e éd.)

Crawford, Saffi, et Geraldine Sullivan. The Power of Birthdays, Stars, & Numbers: The Complete Personology Reference Guide. New York: Ballantine Books, 1998.

Style de citation MLA (9e éd.)

Crawford, Saffi, et Geraldine Sullivan. The Power of Birthdays, Stars, & Numbers: The Complete Personology Reference Guide. Ballantine Books, 1998.