Cita APA (7a ed.)

Orskov, E. R., & Ryle, M. (1990). Energy nutrition in ruminants. Elsevier Applied Science.

Cita Chicago Style (17a ed.)

Orskov, E. R., y M. Ryle. Energy Nutrition in Ruminants. London: Elsevier Applied Science, 1990.

Cita MLA (8a ed.)

Orskov, E. R., y M. Ryle. Energy Nutrition in Ruminants. Elsevier Applied Science, 1990.