Text ( visual ) : unmediated Logo : a retrospective / Cleborne D. Maddux, D. LaMont Johnson, editors. -- New York : Haworth Press , c1997. -- 212 p. : ill. ; 23 cm. -- "Co-published simultaneously as Computers in the schools, volume 14, numbers 1/2 1997." ; Includes bibliographical references and index. -- ISBN 0789003740 ; (BA44914663) ; https://ci.nii.ac.jp/ncid/BA44914663 Author Heading(s): Maddux, Cleborne D. ; Johnson, D. LaMont (Dee LaMont). -- Classification(s): LCC : QA76.73.L63 ; DC21 : 005.13/3. -- Subject Heading(s): LCSH : LOGO (Computer program language) ; LCSH : Computer-assisted instruction