Batchelder, C. F. (1918). Batchelder on New Birds from Newfoundland. Zenodo.
Chicago-viite (17. p.)Batchelder, Charles Foster. Batchelder on New Birds from Newfoundland. Zenodo, 1918.
MLA-viite (9. p.)Batchelder, Charles Foster. Batchelder on New Birds from Newfoundland. Zenodo, 1918.
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