Fuchs Victor R <br/><br/>
Productivity differences witthin the service secto 

 -  1967 
 - National Bureau of Economic Research (New York), Occasional Paper, 102 .
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>X:2.73.N6, K7