Dyfyniad APA

(2005). Principles of instructional design. Belmont, CA: Wadsworth/Thomson Learning.

Dyfyniad Arddull Chicago

Principles of Instructional Design. Belmont, CA: Wadsworth/Thomson Learning, 2005.

Dyfyniad MLA

Principles of Instructional Design. Belmont, CA: Wadsworth/Thomson Learning, 2005.

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