Gaya APA

Ehrenpreis, S., Sicuteri, F. (1920). Degradation of Endogenous Opioids: Its Relevance in Human Pathology and Therapy . New York: Raven Press.

Gaya MLA

Ehrenpreis, Seymour., Sicuteri, Federigo. "Degradation of Endogenous Opioids: Its Relevance in Human Pathology and Therapy". New York: Raven Press, 1920. Text.