Dyfyniad APA

(2003). Annual editions: Human development 2002/2003. Connecticut, US: McGraw-Hill/Dushin.

Dyfyniad Arddull Chicago

Annual Editions: Human Development 2002/2003. Connecticut, US: McGraw-Hill/Dushin, 2003.

Dyfyniad MLA

Annual Editions: Human Development 2002/2003. Connecticut, US: McGraw-Hill/Dushin, 2003.

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