APA (7th ed.) Citation

Harkness, J. E. (1997). Essentials of pet rodents: A guide for practitioners : an update to the practitioner's guide to domestic rodents. American Animal Hospital Association.

Chicago Style (17th ed.) Citation

Harkness, John E. Essentials of Pet Rodents: A Guide for Practitioners : An Update to the Practitioner's Guide to Domestic Rodents. Lakewood, Colo.: American Animal Hospital Association, 1997.

MLA (9th ed.) Citation

Harkness, John E. Essentials of Pet Rodents: A Guide for Practitioners : An Update to the Practitioner's Guide to Domestic Rodents. American Animal Hospital Association, 1997.