Latham, D., & Hetland, B. (2013). Backyard biology: Investigate habitats outside your door with 25 projects. Nomad Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLatham, Donna, और Beth Hetland. Backyard Biology: Investigate Habitats Outside Your Door with 25 Projects. White River Junction, VT: Nomad Press, 2013.
एमएलए (8वां संस्करण) प्रशस्ति पत्रLatham, Donna, और Beth Hetland. Backyard Biology: Investigate Habitats Outside Your Door with 25 Projects. Nomad Press, 2013.
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