Ewing, S. M. (2018). Working with animals. 12 Story Library.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रEwing, Susan M. Working with Animals. Mankato, MN: 12 Story Library, 2018.
एमएलए (8वां संस्करण) प्रशस्ति पत्रEwing, Susan M. Working with Animals. 12 Story Library, 2018.
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