Dyfyniad APA

Schell, R. E. (1975). Developmental psychology today (2nd ed.). Random House.

Dyfyniad Arddull Chicago

Schell, Robert E. Developmental Psychology Today. 2nd ed. San Diego: Random House, 1975.

Dyfyniad MLA

Schell, Robert E. Developmental Psychology Today. 2nd ed. Random House, 1975.

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