Cita APA (7th ed.)

Orskov, O. R. (1982). Protein nutrition in ruminants. Academic Press.

Cita Chicago (17th ed.)

Orskov, O. R. Protein Nutrition in Ruminants. Londres: Academic Press, 1982.

Cita MLA (9th ed.)

Orskov, O. R. Protein Nutrition in Ruminants. Academic Press, 1982.