Hediger, H., Vevers, G., & Reade, W. Man and animal in the zoo: Zoo biology.
Tohutoru Kātū Chicago (17th ed.)Hediger, Heini, Gwynne Vevers, me Winwood Reade. Man and Animal in the Zoo: Zoo Biology.
Tohutoro MLA (9th ed.)Hediger, Heini, et al. Man and Animal in the Zoo: Zoo Biology.
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