Niebel, Benjamin W. <br/><br/>
Motion and time study /  
Benjamin W. Niebel. 
 - 6th ed. 
 - Homewood, Ill. :   R. D. Irwin,   1976. 
 - xiii, 719 p. :   ill. ;   24 cm. 
<br/><br/><label>ISBN: </label>0256017751 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Motion study
<br/><br/><label>LC Class. No.: </label>T60.7