Dyfyniad APA
Pickrell, J., Currie, P., & Creative, X. (2014). Flying dinosaurs: How fearsome reptiles became birds. Columbia University Press.
Dyfyniad Arddull Chicago
Pickrell, John, Philip Currie, and Xou Creative. Flying Dinosaurs: How Fearsome Reptiles Became Birds. New York ; Chichester, England: Columbia University Press, 2014.
Dyfyniad MLA
Pickrell, John, et al. Flying Dinosaurs: How Fearsome Reptiles Became Birds. Columbia University Press, 2014.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.