Mitchell, Mark L. <br/><br/>
Research design explained / 
Mark Mitchell, Janina Jolley. 
 - New York :  Holt, Rinehart and Winston,  c1988. 
 - xiv, 428 p. :  ill. 
<br/><br/><label>ISBN: </label>0030040248 
<br/><br/><label>LCCN: </label>90045097 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research--Methodology.<br/>Research--Moral and ethical aspects.<br/>Experimental design.