Campbell, Donald Thomas % 1916- <br/><br/>
Experimental and quasi-experimental designs for research / Donald T. Campbell ; Julian C. Stanley 

 - Boston :  Houghton, Mifflin,  1963 
 - 84 p. 
<br/><br/> Monografía 
<br/><br/><label>ISBN: </label>0395307872 
<br/><br/><label>Subjects--Index Terms: </label>Educación - Investigación 
<br/><br/><label>LC Class. No.: </label>LB1028/C34 1963