Snodgrass, M. E. (1997). Signs of the zodiac: A reference guide to historical, mythological, and cultural associations. Greenwood Press.
Citazione stile Chigago Style (17a edizione)Snodgrass, Mary Ellen. Signs of the Zodiac: A Reference Guide to Historical, Mythological, and Cultural Associations. Westport, Conn: Greenwood Press, 1997.
Citatione MLA (9a ed.)Snodgrass, Mary Ellen. Signs of the Zodiac: A Reference Guide to Historical, Mythological, and Cultural Associations. Greenwood Press, 1997.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.