Barnes, Ralph Mosser  (1900-1984). <br/><br/>
Motion and time study :  design and measurement of work / 
Ralph M. Barnes. 
 - 7th ed. 
 - New York [etc.] :  John Wiley & Sons,  cop. 1980. 
 - XI, 689 s. :  il. ;  24 cm. 
<br/><br/>Bibliogr. s. 661-678. Indeks. 
<br/><br/><label>ISBN: </label>0471059056 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Praca--pomiar.<br/>Badanie czasu pracy.
<br/><br/><label>Universal Decimal Class. No.: </label>331.103.3