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  1. By: Powell, David
    Type: Article
    In: Animal keepers' forum
    Volume: 42
    Issue: 3
    Date: 2015-03
    Page Range: 76--78
    Publication Info: Topeka, Kan, American Association of Zoo Keepers,
  2. By: Powell, David - Ardaiolo, Matthew
    Type: Article
    In: Animal keepers' forum
    Volume: 42
    Issue: 3
    Date: 2015-03
    Page Range: 74--75
    Publication Info: Topeka, Kan, American Association of Zoo Keepers,
  3. By: Houston, Bill - Powell, David - Huffman, Brent - Fischer, Martha
    Type: Article
    In: Animal keepers' forum
    Volume: 38
    Issue: 8
    Date: 2011-08
    Page Range: 362--367
    Publication Info: Topeka, Kan, American Association of Zoo Keepers,