APA (7th ed.) Citation

Walton, J. R., & Wheeler, J. (1987). A handbook of pig diseases (2nd ed.). Liverpool University Press.

Chicago Style (17th ed.) Citation

Walton, John R., and Jean Wheeler. A Handbook of Pig Diseases. 2nd ed. Liverpool: Liverpool University Press, 1987.

MLA (9th ed.) Citation

Walton, John R., and Jean Wheeler. A Handbook of Pig Diseases. 2nd ed. Liverpool University Press, 1987.