Gaya APA

Gardner, D, G., Shoback, D. (2011). Greenspan's basic & clinical endocrinology (9th ed). New York: McGraw-Hill Information Services.

Gaya MLA

Gardner, David, G.., Shoback, Dolores. "Greenspan's basic & clinical endocrinology". 9th ed New York: McGraw-Hill Information Services, 2011. print.