Tilford, G. L., & Wulff-Tilford, M. (2009). Herbs for pets: The natural way to enhance your pet's life (2nd ed.). BowTie Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रTilford, Gregory L., और Mary Wulff-Tilford. Herbs for Pets: The Natural Way to Enhance Your Pet's Life. 2nd ed. Laguna Hills, Calif.: BowTie Press, 2009.
एमएलए (8वां संस्करण) प्रशस्ति पत्रTilford, Gregory L., और Mary Wulff-Tilford. Herbs for Pets: The Natural Way to Enhance Your Pet's Life. 2nd ed. BowTie Press, 2009.
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