APA (7th ed.) Citation

ScienceDirect (Online service), O'Malley, B. W., & Hardman, J. G. (1975). Hormone action. Academic.

Chicago Style (17th ed.) Citation

ScienceDirect (Online service), Bert W. O'Malley, and Joel G. Hardman. Hormone Action. New York: Academic, 1975.

MLA (9th ed.) Citation

ScienceDirect (Online service), et al. Hormone Action. Academic, 1975.