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  1. By: Berghaier, Robert
    Type: Article
    In: Animal keepers' forum
    Volume: 41
    Issue: 4
    Date: 2014-04
    Page Range: 110--113
    Publication Info: Topeka, Kan, American Association of Zoo Keepers,
  2. By: Berghaier, Robert
    Type: Article
    In: Animal keepers' forum
    Volume: 39
    Issue: 6
    Date: 2012-06
    Page Range: 268--276
    Publication Info: Topeka, Kan, American Association of Zoo Keepers,