APA (7th ed.) Citation

Lagerquist, K., & Lenard-Cook, L. (1999). The complete idiot's guide to numerology. Alpha Books.

Chicago Style (17th ed.) Citation

Lagerquist, Kay, and Lisa Lenard-Cook. The Complete Idiot's Guide to Numerology. New York, N.Y.: Alpha Books, 1999.

MLA (9th ed.) Citation

Lagerquist, Kay, and Lisa Lenard-Cook. The Complete Idiot's Guide to Numerology. Alpha Books, 1999.