Durland, M. A. (1975). A comparison of programmed instruction and self-guided instruction in terms of efficiency and effectiveness ([Facs.].). Xerox Univ. Microfilms.
Chicago-Zitierstil (17. Ausg.)Durland, Mary A. A Comparison of Programmed Instruction and Self-guided Instruction in Terms of Efficiency and Effectiveness. [Facs.]. Ann Arbor, Mich [u.a.]: Xerox Univ. Microfilms, 1975.
MLA-Zitierstil (9. Ausg.)Durland, Mary A. A Comparison of Programmed Instruction and Self-guided Instruction in Terms of Efficiency and Effectiveness. [Facs.]. Xerox Univ. Microfilms, 1975.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.