Cita APA (7a ed.)

Tomes, G., Haresign, W., & Lighfoot, P. (1979). Sheep breeding (2nd edition.). Butterworth.

Cita Chicago Style (17a ed.)

Tomes, G.L, W. Haresign, y P.J Lighfoot. Sheep Breeding. 2nd edition. London: Butterworth, 1979.

Cita MLA (8a ed.)

Tomes, G.L, et al. Sheep Breeding. 2nd edition. Butterworth, 1979.