Methodological aspects of statistics on research and development costs and manpower . 

 - Washington :  NSF ,  1959  
 - v, 132p.;  28 cm. 
<br/><br/>Includes bibliographical references  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Statistics
<br/><br/><label>Dewey Class. No.: </label>311  / NSE