Judd, Dorothy H. Mastering the micro : Using the microcomputer in the elementary classroom / Dorothy H. Judd and Robert C. Judd. - New Jersey : Scott, Foresman, c 1984. - viii, 152 p. : ill. ; 23 cm. - A good year book. . Includes index. 42 42 ISBN: 0-673-15909-4 Subjects--Topical Terms: Computer-assisted instruction. Dewey Class. No.: 372.851078 / J881m