Dyfyniad APA

Sless, D. (1981). Learning and visual communication. Croom Helm ; Wiley.

Dyfyniad Arddull Chicago

Sless, David. Learning and Visual Communication. London : New York: Croom Helm ; Wiley, 1981.

Dyfyniad MLA

Sless, David. Learning and Visual Communication. Croom Helm ; Wiley, 1981.

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