Schur, Lee David. <br/><br/>
Time-shared computer languages :  an introduction to conversational computing / 
Lee David Schur. 
 - Reading, Mass. :  Addison-Wesley,  1973. 
 - xiv, 561 p. :  ill. ;  25 cm. 
<br/><br/>Bibliography: p. 544-546. 
<br/><br/><label>ISBN: </label>0201067617 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Programming languages (Electronic computers).<br/>Time--sharing computer systems.