FRIEDRICHS, Jurgen <br/><br/>
Participant Observation/ 
Jurgen Friedrichs and Hamut Ludtke 
 - England  Saxon House,D .C  C1975 
 - Xii,257p.:  ill.; 
<br/><br/> Includes Appendices 
<br/><br/><label>ISBN: </label>0347010490 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Observation
<br/><br/><label>Dewey Class. No.: </label>301