TY  - BOOK
AU  - Burgess Robert L
AU  -  Bushell Don
TI  - Behavioral sociology :  The experimental analysis o   
U1  - Y:(SN1), K9 
PY  - 1969///
CY  - New York 
PB  - Columbuia University Press       
KW  - Scinentific method
N1  - Bibiliogrphy at the end of each chapter
ER  -