TY  - BOOK
AU  - Shipman M D
TI  - Limitations of social research
T2  - Aspects of modern sociology, social research. Ed by John Barron May and Maurice craft
U1  - Yb4, L2 
PY  - 1972///
CY  - London
PB  - Longman          
N1  - Bibliography P170-187
ER  -