Dyfyniad APA
Hill, J. E., & Smith, J. D. (1984). Bats: A natural history. University of Texas Press.
Dyfyniad Arddull Chicago
Hill, John Edwards, and James Dale Smith. Bats: A Natural History. Austin: University of Texas Press, 1984.
Dyfyniad MLA
Hill, John Edwards, and James Dale Smith. Bats: A Natural History. University of Texas Press, 1984.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.