Walker, Decker F. Instructional software : principles and perspectives for design and use / edited by Decker F. Walker and Robert D. Hess. - Belmont, Calif. : Wadsworth Pub. Co., c1984. - xi, 308 p. : ill. ; 24 cm. Includes bibliographies. ISBN: 0534014593 (pbk.) LCCN: 83012531 Subjects--Topical Terms: Computer-assisted instruction.Computer-assisted instruction--Computer programs. LC Class. No.: LB1028.5 / .I54 1984 Dewey Class. No.: 370.285/WAI