Dyfyniad APA

Thomas, S. D., & Spencer, T. D. (1970). Perspectives in child psychology: Research and review. Mcgraw-Hill.

Dyfyniad Arddull Chicago

Thomas, Spencer D., and Thomas D. Spencer. Perspectives in Child Psychology: Research and Review. New York: Mcgraw-Hill, 1970.

Dyfyniad MLA

Thomas, Spencer D., and Thomas D. Spencer. Perspectives in Child Psychology: Research and Review. Mcgraw-Hill, 1970.

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