Dyfyniad APA
Burtt, E. H., Jr., & Davis, W. E., Jr. (2013). Alexander Wilson: The Scot who founded American ornithology. Belknap Press of Harvard University Press.
Dyfyniad Arddull Chicago
Burtt, Edward H., Jr., and William E. Davis, Jr. Alexander Wilson: The Scot Who Founded American Ornithology. Cambridge: Belknap Press of Harvard University Press, 2013.
Dyfyniad MLA
Burtt, Edward H., Jr., and William E. Davis, Jr. Alexander Wilson: The Scot Who Founded American Ornithology. Belknap Press of Harvard University Press, 2013.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.