Tilford, G. L., & Wulff-Tilford, M. (2009). Herbs for pets: The natural way to enhance your pet's life (2nd ed.). BowTie Press.
Style de citation Chicago (17e éd.)Tilford, Gregory L., et Mary Wulff-Tilford. Herbs for Pets: The Natural Way to Enhance Your Pet's Life. 2nd ed. Laguna Hills, Calif.: BowTie Press, 2009.
Style de citation MLA (8e éd.)Tilford, Gregory L., et Mary Wulff-Tilford. Herbs for Pets: The Natural Way to Enhance Your Pet's Life. 2nd ed. BowTie Press, 2009.
Attention : ces citations peuvent ne pas être correctes à 100%.