APA (7th ed.) Citation

ScienceDirect (Online service), Cole, D. J. A., & Foxcroft, G. R. (1982). Control of pig reproduction. Butterworths.

Chicago Style (17th ed.) Citation

ScienceDirect (Online service), D. J. A. Cole, and G. R. Foxcroft. Control of Pig Reproduction. London: Butterworths, 1982.

MLA (9th ed.) Citation

ScienceDirect (Online service), et al. Control of Pig Reproduction. Butterworths, 1982.