Cita APA

Butt , W. .. R. (1976). Hormone chemistry (2nd ed.). John wiley & sons.

Citación estilo Chicago

Butt , W . R. Hormone Chemistry. 2nd ed. New York: John wiley & sons, 1976.

Cita MLA

Butt , W . R. Hormone Chemistry. 2nd ed. John wiley & sons, 1976.