Media type: Book Title: Instructional design theory Contributor: Merrill, M. David [Author]; Twitchell, David G. [Other] Published: Englewood Cliffs, NJ: Educational Technology Publ., 1994 Issue: 1. printing Extent: XII, 465 S; graph. Darst Language: English ISBN: 087778275X RVK notation: CX 3000 : Pädagogische Lernpsychologie Keywords: Computerunterstützter Unterricht > Softwareentwicklung > Unterrichtstechnologie Origination: Footnote: Includes bibliographical references and index