Sharp, David
Animal days : animals from the hot lands
Bay Books, 1984
 Buku Referensi
Sharp, David
Animal days : animals from the cold lands
Bay Books, 1984
 Buku Referensi
Sharp, David
Animal days : animals from the rivers and oceans
Bay Books, 1984
 Buku Referensi
Breeding and improvement of farm animals
Victor Arthur Rice...[et al.]
McGraw-Hill, 1957
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Creative conservation : interactive management of wild and captive animals
edited by P.J.S. Olney, G.M. Mace and A.T.C. Feistner
Chapman & Hall, 1994
 Buku Teks