Bartel, C. R. (1976). Instructional analysis and materials development. ATS.
Cita Chicago (17th ed.)Bartel, Carl R. Instructional Analysis and Materials Development. Illinois: ATS, 1976.
Cita MLA (9th ed.)Bartel, Carl R. Instructional Analysis and Materials Development. ATS, 1976.
Atenció: Aquestes cites poden no estar 100% correctes.