APA (7th ed.) Citation

Ball, I. R., Gourbault, N., & Kenk, R. (1981). The planarians (Turbellaria) of temporary waters in eastern North America. Royal Ontario Museum.

Chicago Style (17th ed.) Citation

Ball, Ian R., N. Gourbault, and Roman Kenk. The Planarians (Turbellaria) of Temporary Waters in Eastern North America. Toronto: Royal Ontario Museum, 1981.

MLA (9th ed.) Citation

Ball, Ian R., et al. The Planarians (Turbellaria) of Temporary Waters in Eastern North America. Royal Ontario Museum, 1981.