(1975). Teaching effectiveness: Its meaning, assessment, and improvement. Educational Technology Publ.
Chicago-Zitierstil (17. Ausg.)Teaching Effectiveness: Its Meaning, Assessment, and Improvement. Englewood Cliffs, NJ: Educational Technology Publ, 1975.
MLA-Zitierstil (9. Ausg.)Teaching Effectiveness: Its Meaning, Assessment, and Improvement. Educational Technology Publ, 1975.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.