Dyfyniad APA

Allen, E. F., & Copeland, L. (1938). High school self taught. New York: Halcyon House.

Dyfyniad Arddull Chicago

Allen, Edward Frank, και Lewis Copeland. High School Self Taught. New York: Halcyon House, 1938.

Dyfyniad MLA

Allen, Edward Frank, και Lewis Copeland. High School Self Taught. New York: Halcyon House, 1938.

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