(页面存档备份,存于互联网档案馆)"; accessed 2016.02.16. University of Pennsylvania, "Special Issue: Deer eating the future of Pennsylvania's Forests! 互联网档案馆的存檔,存档日期2016-10-05."; accessed
of Special Concern in Pennsylvania, in H. H. Genoways and F. J. Brenner, editors. Special Publication of Carnegie Museum of Natural Pennsylvania. Carnegie
Paul Lowinger papers, Kislak Center for Special Collections, Rare Books and Manuscripts, University of Pennsylvania. Paul Lowinger was a psychiatrist and