Science indicators 1976 

 - Washgington :  United States Government Printing Office,  1976 
 - 304 p. :  ill. ;  23 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research<br/>Discoveries in science
<br/><br/><label>Dewey Class. No.: </label>507.2