APA
Christian Hamburger, . (1987). Acta EndocrinoLogica. New York: Academic Press.
Chicago
Christian Hamburger, . 1987. Acta EndocrinoLogica. New York: Academic Press.
Harvard
Christian Hamburger, . (1987). Acta EndocrinoLogica. New York: Academic Press.
MLA
Christian Hamburger, . Acta EndocrinoLogica. New York: Academic Press. 1987.