APA (7th ed.) Citation

ScienceDirect (Online service), Gross, E., & Meienhofer, J. (1981). The peptides: Analysis, synthesis, biology. Academic Press.

Chicago Style (17th ed.) Citation

ScienceDirect (Online service), Erhard Gross, and Johannes Meienhofer. The Peptides: Analysis, Synthesis, Biology. [New York]: Academic Press, 1981.

MLA (9th ed.) Citation

ScienceDirect (Online service), et al. The Peptides: Analysis, Synthesis, Biology. Academic Press, 1981.