APA (7th ed.) Citation

Hall, J. (2005). The crystal bible: A definitive guide to crystals. Octuspus Publishing.

Chicago Style (17th ed.) Citation

Hall, Judy. The Crystal Bible: A Definitive Guide to Crystals. London: Octuspus Publishing, 2005.

MLA (9th ed.) Citation

Hall, Judy. The Crystal Bible: A Definitive Guide to Crystals. Octuspus Publishing, 2005.

Warning: These citations may not always be 100% accurate.