Nayman, A. (1979). World of wildlife. Facts on File.
Lua i Stíl Chicago (17ú heag.)Nayman, Anthony. World of Wildlife. New York: Facts on File, 1979.
Lua MLA (9ú heag.)Nayman, Anthony. World of Wildlife. Facts on File, 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.