Wittich, W. A., Folkes. Ed, & John Guy. (1973). Instructional technology its nature and use (5th ed.). Harper & Row.
シカゴスタイル引用形Wittich, Walter A., Folkes. Ed, , John Guy. Instructional Technology Its Nature and Use. 5th ed. Harper & Row, 1973.
MLA引用形式Wittich, Walter A., et al. Instructional Technology Its Nature and Use. 5th ed. Harper & Row, 1973.
警告: この引用は必ずしも正確ではありません.