omar, ahmed. <br/><br/>
on the maintance of a system of machines by one repairman /  
ahmed omar ; the institute of national planning. 
 - cairo :   the institute of national planning,   1970. 
 - 11 p. ؛   27 سم. 
 - External notes ;  953. .
<br/><br/><label>Subjects--Topical Terms: </label><br/>the maintance.<br/>system of machines.
<br/><br/><label>Subjects--Index Terms: </label>repairman. 
<br/><br/><label>Dewey Class. No.: </label>338.9  / م.ذ