Krutch, J. W. (1962). A Treasure of birdlore.: By Joseph Wood. Paul S. Eriksson.
Tohutoru Kātū Chicago (17th ed.)Krutch, Joseph Wood. A Treasure of Birdlore.: By Joseph Wood. New York: Paul S. Eriksson, 1962.
Tohutoro MLA (9th ed.)Krutch, Joseph Wood. A Treasure of Birdlore.: By Joseph Wood. Paul S. Eriksson, 1962.
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