Command languages :  proceedings of the IFIP Working Conference on Command Languages / 
edited by C. Unger 
 - Amsterdam :  North-Holland Publishing,  1975 
 - vii, 403 p. ;  23 cm. 
<br/><br/> 'Organized by IFIP Technical Committee 2' 
<br/><br/><label>ISBN: </label>0444108009 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Programming languages (Electronic computers)--Congresses<br/>Electronic digital computers--Programming--Congresses