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  1. By: Tresz, Hilda
    Type: Article
    In: Animal keepers' forum
    Volume: 40
    Issue: 7
    Date: 2013-07
    Page Range: 320--325
    Publication Info: Topeka, Kan, American Association of Zoo Keepers,
  2. By: Tresz, Hilda
    Type: Article
    In: Animal keepers' forum
    Volume: 40
    Issue: 8
    Date: 2013-08
    Page Range: 358--362
    Publication Info: Topeka, Kan, American Association of Zoo Keepers,