Dyfyniad APA
Hillis, D. (1974). Is there Really only one way? Vision house.
Dyfyniad Arddull Chicago
Hillis, Dick. Is There Really Only One Way? Santa Ana ,Califonia: Vision house, 1974.
Dyfyniad MLA
Hillis, Dick. Is There Really Only One Way? Vision house, 1974.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.