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Four Field Guides

National Audubon Society Guides to North American:

  • Mammals by Whitaker, 1980, 745 pp.
  • Birds (Western Region) by Udvardy, 1977, 852 pp.
  • Reptiles & Amphibians by Behler and King, 1979, 743 pp.
  • Insects & Spiders by Milne and Milne, 1980, 989 pp.
  • Four books sold as a set
  • $35