Crawford, S., & Sullivan, G. (1998). The power of birthdays, stars, & numbers: The complete personology reference guide. Ballantine Books.
Citace podle Chicago (17th ed.)Crawford, Saffi, a Geraldine Sullivan. The Power of Birthdays, Stars, & Numbers: The Complete Personology Reference Guide. New York: Ballantine Books, 1998.
Citace podle MLA (9th ed.)Crawford, Saffi, a Geraldine Sullivan. The Power of Birthdays, Stars, & Numbers: The Complete Personology Reference Guide. Ballantine Books, 1998.
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