Barnes, Ralph M. <br/><br/>
Working sampling / 
Ralph M. Barnes. 
 - 2nd ed. 
 - New York :  John wiley and sons,  c 1957. 
 - x, 283 p. :  ill. ;  23 cm.  
<br/><br/> Includes index 
<br/><br/>400  400 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Work sampling.
<br/><br/><label>Dewey Class. No.: </label>658.54 / B263w