TY  - BOOK
AU  - Brown, Gary D.
AU  - Brown, Duane.
ED  - 
ED  - 
ED  - 
ED  - 
SN  - 70081956
SN  - 2
PY  - 1975///]46
CY  - New York
PB  - McGraw-Hill
KW  - 
KW  - 2
KW  - 0
KW  - 6
KW  - 20
KW  - Social sciences
N1  - Includes bibliographical references and index; 5
ER  -