Angus, L. (2017). Paddle perch climb: Bird feet are neat (First edition.). Dawn Publications.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAngus, Laurie. Paddle Perch Climb: Bird Feet Are Neat. First edition. Nevada City, CA: Dawn Publications, 2017.
एमएलए (8वां संस्करण) प्रशस्ति पत्रAngus, Laurie. Paddle Perch Climb: Bird Feet Are Neat. First edition. Dawn Publications, 2017.
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