Dyfyniad APA
Stephens, J. (1956). Educational psychology: The study of educational growth (rev.ed.). Henry holt.
Dyfyniad Arddull Chicago
Stephens, J.M. Educational Psychology: The Study of Educational Growth. rev.ed. New york: Henry holt, 1956.
Dyfyniad MLA
Stephens, J.M. Educational Psychology: The Study of Educational Growth. rev.ed. Henry holt, 1956.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.