Sommer, Robert. <br/><br/>
A practical guide to behavioral research :  tools and techniques / 
Robert Sommer and Barbara B. Sommer. 
 - 2nd ed. 
 - New York :  Oxford University Press,  1986. 
 - viii, 297 p. :  ill. ;  25 cm. 
<br/><br/>Includes bibliographies and indexes. 
<br/><br/><label>ISBN: </label>0195039777 (alk. paper) 0195039785 (pbk.) 
<br/><br/><label>LCCN: </label>85018874  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social sciences--Research.<br/>Social sciences--Methodology.<br/>Psychology--Research.<br/>Social sciences--Research--Data processing.
<br/><br/><label>LC Class. No.: </label>H62  / .S724734 1986 
<br/><br/><label>Dewey Class. No.: </label>150/.72