Dyfyniad APA

Sprinthall, N. A., & Sprinthall, R. C. (1990). Educational Psychology: A Developmental Approach. Singapore: McGraw-Hill.

Dyfyniad Arddull Chicago

Sprinthall, Norman A., và Richard C. Sprinthall. Educational Psychology: A Developmental Approach. Singapore: McGraw-Hill, 1990.

Dyfyniad MLA

Sprinthall, Norman A., và Richard C. Sprinthall. Educational Psychology: A Developmental Approach. Singapore: McGraw-Hill, 1990.

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