Fabricant Solomon <br/><br/>
Basic facts on productivity change 
Fabricant Solomon 
 -  1959 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Working Environmental
<br/><br/><label>Dewey Class. No.: </label>X:89P, J9