APA (7th ed.) Citation

ScienceDirect (Online service), Hoar, W. S., & Randall, D. J. (1970). The nervous system, circulation, and respiration. Academic Press.

Chicago Style (17th ed.) Citation

ScienceDirect (Online service), William Stewart Hoar, and David J. Randall. The Nervous System, Circulation, and Respiration. New York ; London: Academic Press, 1970.

MLA (9th ed.) Citation

ScienceDirect (Online service), et al. The Nervous System, Circulation, and Respiration. Academic Press, 1970.