Dyfyniad APA

Procopio, M. (2003). More on preventing skin cancer: No evolutionary connection exists between skin colour and cancer. BMJ Publishing Group Ltd.

Dyfyniad Arddull Chicago

Procopio, Marco. More On Preventing Skin Cancer: No Evolutionary Connection Exists between Skin Colour and Cancer. BMJ Publishing Group Ltd, 2003.

Dyfyniad MLA

Procopio, Marco. More On Preventing Skin Cancer: No Evolutionary Connection Exists between Skin Colour and Cancer. BMJ Publishing Group Ltd, 2003.

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