APA (7th ed.) Citation

Orr, D., & Douglas, E. (2007). Scuba diving safety. Human Kinetics.

Chicago Style (17th ed.) Citation

Orr, Dan, and Eric Douglas. Scuba Diving Safety. Champaign, Ill: Human Kinetics, 2007.

MLA (9th ed.) Citation

Orr, Dan, and Eric Douglas. Scuba Diving Safety. Human Kinetics, 2007.