APA-Zitierstil (7. Ausg.)

Welker, R. H. (1955). Birds and Men: American Birds in Science, Art, Literature, and Conservation, 1800–1900. Harvard University Press. https://doi.org/10.4159/harvard.9780674436824

Chicago-Zitierstil (17. Ausg.)

Welker, Robert Henry. Birds and Men: American Birds in Science, Art, Literature, and Conservation, 1800–1900. Cambridge, Mass: Harvard University Press, 1955. https://doi.org/10.4159/harvard.9780674436824.

MLA-Zitierstil (9. Ausg.)

Welker, Robert Henry. Birds and Men: American Birds in Science, Art, Literature, and Conservation, 1800–1900. Harvard University Press, 1955. https://doi.org/10.4159/harvard.9780674436824.