Dyfyniad APA
Bartel, C. R. (1976). Instructional analysis and materials development. ATS.
Dyfyniad Arddull Chicago
Bartel, Carl R. Instructional Analysis and Materials Development. Illinois: ATS, 1976.
Dyfyniad MLA
Bartel, Carl R. Instructional Analysis and Materials Development. ATS, 1976.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.