Shaw, W. W. (1984). Nonconsumptive use of wildlife in the United States. Washington: Fish and Wildlife Service.
Citación estilo ChicagoShaw, William W. Nonconsumptive Use of Wildlife in the United States. Washington: Fish and Wildlife Service, 1984.
Cita MLAShaw, William W. Nonconsumptive Use of Wildlife in the United States. Washington: Fish and Wildlife Service, 1984.
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