Levine, S., & Johnstone, L. (2010). Animals: Mammals, birds, reptiles, amphibians, fish, and other animals. Crabtree Pub..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLevine, Shar, और Leslie Johnstone. Animals: Mammals, Birds, Reptiles, Amphibians, Fish, and Other Animals. New York: Crabtree Pub., 2010.
एमएलए (8वां संस्करण) प्रशस्ति पत्रLevine, Shar, और Leslie Johnstone. Animals: Mammals, Birds, Reptiles, Amphibians, Fish, and Other Animals. Crabtree Pub., 2010.
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