Cita APA (7a ed.)

Cole, D., & Foxcroft, G. (1982). Control of pig reproduction. Butterworth Scientific.

Cita Chicago Style (17a ed.)

Cole, D.J.A, y G.R Foxcroft. Control of Pig Reproduction. London: Butterworth Scientific, 1982.

Cita MLA (8a ed.)

Cole, D.J.A, y G.R Foxcroft. Control of Pig Reproduction. Butterworth Scientific, 1982.