APA (7th ed.) Citation

Callahan, J. (2001). Your older dog: A complete guide to help your dog live a longer and healthier life. Simon & Schuster.

Chicago Style (17th ed.) Citation

Callahan, Jean. Your Older Dog: A Complete Guide to Help Your Dog Live a Longer and Healthier Life. New York: Simon & Schuster, 2001.

MLA (9th ed.) Citation

Callahan, Jean. Your Older Dog: A Complete Guide to Help Your Dog Live a Longer and Healthier Life. Simon & Schuster, 2001.