Dyfyniad APA

PIKUNAS JUSTIN. (1969). HUMAN DEVELOPMENT AN ENGERGENT SCIENCE (3RD.). MCGRAW-HILL.

Dyfyniad Arddull Chicago

PIKUNAS JUSTIN. HUMAN DEVELOPMENT AN ENGERGENT SCIENCE. 3RD. TOKYO: MCGRAW-HILL, 1969.

Dyfyniad MLA

PIKUNAS JUSTIN. HUMAN DEVELOPMENT AN ENGERGENT SCIENCE. 3RD. MCGRAW-HILL, 1969.

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