Dyfyniad APA

Sykes, B. (2004). Adam's curse: A future without men (1st American ed.). W.W. Norton.

Dyfyniad Arddull Chicago

Sykes, Bryan. Adam's Curse: A Future Without Men. 1st American ed. New York: W.W. Norton, 2004.

Dyfyniad MLA

Sykes, Bryan. Adam's Curse: A Future Without Men. 1st American ed. W.W. Norton, 2004.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.