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The status of trumpeter swans in British Columbia and Yukon, summer, 1990 / R. McKelvey, J. Hawkings.

By: Material type: TextTextSeries: Publication details: Delta, B.C. : Canadian Wildlife Service, Pacific and Yukon Region 1990.Description: iii, 27 p. : maps ; 28 cmISBN:
  • 0662184807
  • 9780662184805

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