Barker, M. A., & Wolfson, E. (2013). Audubon birdhouse book: Building, placing, and maintaining great homes for great birds. Voyageur Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBarker, Margaret A., और Elissa Wolfson. Audubon Birdhouse Book: Building, Placing, and Maintaining Great Homes for Great Birds. Minneapolis, Minnesota: Voyageur Press, 2013.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBarker, Margaret A., और Elissa Wolfson. Audubon Birdhouse Book: Building, Placing, and Maintaining Great Homes for Great Birds. Voyageur Press, 2013.
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