HERTZ, D.B. <br/><br/>
Theory and practice of industrial research 
HERTZ, D.B. 
 - London  Mcgraw-Hill  1950 
 - 385 pages 
<br/><br/><br/>In English 
<br/><br/><label>Subjects--Topical Terms: </label><br/>RESEARCH
<br/><br/><label>Dewey Class. No.: </label>OC20,16  1950