Dyfyniad APA

Sorenson, H. (1948). Psychology in education (2nd ed.). McGraw-Hill.

Dyfyniad Arddull Chicago

Sorenson, Herbert. Psychology in Education. 2nd ed. New York: McGraw-Hill, 1948.

Dyfyniad MLA

Sorenson, Herbert. Psychology in Education. 2nd ed. McGraw-Hill, 1948.

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