Wilson, E. Bright, Jr. <br/><br/>
An introduction to scientific research 

 - New York :  McGraw-Hill,  1952 
 - 373 p.  : ilus. 
 - McGraw-Hill paperbacks .
 - McGraw-Hill paperbacks .
<br/><br/><label>LCCN: </label>54299 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Diseños experimentales.<br/>Investigación--Metodología.
<br/><br/><label>Dewey Class. No.: </label>507.2  / W5