APA (7th ed.) Citation

Roberts, T. B., & Hruby, P. J. (1996). Entheogens - Return of the Ostracized.

Chicago Style (17th ed.) Citation

Roberts, Thomas B., and Paula Jo Hruby. Entheogens - Return of the Ostracized. 1996.

MLA (9th ed.) Citation

Roberts, Thomas B., and Paula Jo Hruby. Entheogens - Return of the Ostracized. 1996.

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