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Descriptions of Some Birds Supposed to be Undescribed, from the Commander Islands and Petropaulovski, Collected by Dr. Leonhard Stejneger, U.S. Signal Service

Robert Ridgway

出版	U.S. Government Printing Office, 1884
URL	http://books.google.com.hk/books?id=cfFmQwAACAAJ&hl=&source=gbs_api