sack, K. <br/><br/>
planning of technical progress in industry :   planning of introducing new technique into production /   part iii. 
K. sack. 
 - cairo :   the institute of national planning,   1966. 
 - 62 p. :   ill. ;   27 cm.  included in volume. 
 - External Notes ؛  617. .
<br/><br/><label>Subjects--Index Terms: </label>planning. scoialist countries. technical progress. 
<br/><br/><label>Dewey Class. No.: </label>338.9  / م.ذ 616