APA (7th ed.) Citation
Schwartz, T. B., & Ryan, W. G. (1980). The Year Book of endocrinology. Year Book medical publ.
Chicago Style (17th ed.) Citation
Schwartz, Theodore B., and Will G. Ryan. The Year Book of Endocrinology. Chicago [usw.]: Year Book medical publ, 1980.
MLA (9th ed.) Citation
Schwartz, Theodore B., and Will G. Ryan. The Year Book of Endocrinology. Year Book medical publ, 1980.
Warning: These citations may not always be 100% accurate.