Ertmer, Peggy A. The ID casebook : case studies in instructional design / Peggy A. Ertmer, James Quinn. - N. J : Merrill/Prentice Hall, c1999. - x, 150p. : ill. ; 23 cm. Includes bibliographical references. ISBN: 0138590427 Subjects--Topical Terms: Instructional systems--Design--Case studies LC Class. No.: LB1028.38 / Er8 1999