APA (7th ed.) Citation

Smith, P., Bird, N., & Crabtree, H. (2009). Perfecting the pig environment. Nottingham Univ. Pr.

Chicago Style (17th ed.) Citation

Smith, Paul, Nick Bird, and Hugh Crabtree. Perfecting the Pig Environment. Nottingham: Nottingham Univ. Pr, 2009.

MLA (9th ed.) Citation

Smith, Paul, et al. Perfecting the Pig Environment. Nottingham Univ. Pr, 2009.