Dyfyniad APA

Ivers, N. M. (2010). Why didn’t it work? Canadian Medical Association.

Dyfyniad Arddull Chicago

Ivers, Noah M. Why Didn’t It Work? Canadian Medical Association, 2010.

Dyfyniad MLA

Ivers, Noah M. Why Didn’t It Work? Canadian Medical Association, 2010.

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