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Feathers and Flight

Clarence John Hylander

出版	Macmillan, 1959
URL	http://books.google.com.hk/books?id=voo_AAAAYAAJ&hl=&source=gbs_api

註釋

The place of birds in the animal kingdom and descriptions of their body structure, flight patterns, migration and nesting habits. Grades 6 and up.