APA
P. Eckstein, . (1989). The Determination of Adrenocortical Steroids and Their Metabolites. New York: Academic Press.
Chicago
P. Eckstein, . 1989. The Determination of Adrenocortical Steroids and Their Metabolites. New York: Academic Press.
Harvard
P. Eckstein, . (1989). The Determination of Adrenocortical Steroids and Their Metabolites. New York: Academic Press.
MLA
P. Eckstein, . The Determination of Adrenocortical Steroids and Their Metabolites. New York: Academic Press. 1989.