Freedman, Paul <br/><br/>
Principles of scientific research 
by Paul Freedman 
 - 2nd ed. 
 - Oxford  Pergamon  1960 
 - 227p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research
<br/><br/><label>Dewey Class. No.: </label>I55 F875