Dyfyniad APA

Pollard, P., & Ratcliffe, P. (2009). Cancer. Puzzling patterns of predisposition.

Dyfyniad Arddull Chicago

Pollard, P., and P. Ratcliffe. Cancer. Puzzling Patterns of Predisposition. 2009.

Dyfyniad MLA

Pollard, P., and P. Ratcliffe. Cancer. Puzzling Patterns of Predisposition. 2009.

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