The development of field guides for birding: Gwillim, Wilson, Audubon and Peterson.
University of Toronto.
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Cameron
D000716:Anatomy, Artistic / Q000266:history*; D000818:Animals; D001717:Birds; D004739:England; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D009656:North America; D012013:Reference Books; D015046:Zoology / Q000266:history*