Campbell, Donald Thomas,  1916-1996. <br/><br/>
Experimental and quasi-experimental designs for research / 
Donald T. Campbell and Julian C. Stanley. 
 - Boston :  Houghton Mifflin Co.,  1963. 
 - ix, 84 p. 
<br/><br/> Handbook of research on teaching / N.L. Gage. éditeur, par Rand McNally & Company en 1963. 
<br/><br/><label>ISBN: </label>0395307872 
<br/><br/><label>Subjects--Topical Terms: </label>--Research design--Experimental design.