Packard, A. S. (1883). Zoology for high schools and colleges (4th ed., rev.). Henry Holt and Co..
Lua i Stíl Chicago (17ú heag.)Packard, A. S. Zoology for High Schools and Colleges. 4th ed., rev. New York: Henry Holt and Co., 1883.
Lua MLA (8ú heag.)Packard, A. S. Zoology for High Schools and Colleges. 4th ed., rev. Henry Holt and Co., 1883.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.