Freedman, Paul. <br/><br/>
The principles of scientific research / 
Paul Freedman. 
 - 2nd rev.ed. 
 - Oxford :  Pergamon Press,  c1960. 
 - 228 p. :  illus. ;  23 cm. 
<br/><br/>Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research.
<br/><br/><label>Dewey Class. No.: </label>507.2  / FRP 1960