Sociological research 
Matilda White Riley ; under the general editorship of Robert K. Merton. 
 - Brace & World, New York:   Harcourt,   1963. 
 - 2 volume:   maps, diagrams. ;   24-28 cm. 
<br/><br/>pages 743-753. 
<br/><br/>v.1. A case approach -- v.2. Exercises and manual 
<br/><br/><label>ISBN: </label>0155823132 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sociology--Study and teaching.