Whitney, Frederick Lamson,  1874- <br/><br/>
Elementos de investigación / 
Frederick Lamson Whitney. 
 - [2a ed.]. 
 - Barcelona :  Ediciones Omega,  [1963] 
 - 395 p. 
<br/><br/> Translation of :The elements of research. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research--Methodology.
<br/><br/><label>LC Class. No.: </label>LB 2369  / W618e 1963