 |
| 1. |
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Birds of British Columbia, Volume 3
Wayne Campbell, Neil K Dawe, Ian McTaggart-Cowan, John M Cooper, Gary W Kaiser
Inbunden. University of British Columbia Press, Kanada, 1997.
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 |
| 2. |
|
Birds of British Columbia, Volume 4
Wayne Campbell, Neil K Dawe, Ian McTaggart-Cowan, John M Cooper, Gary W Kaiser
Inbunden. University of British Columbia Press, Kanada, 2001.
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|
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