TY  - BOOK
AU  - Oppenheim A
TI  - Questionnaire Design And Attitude Measurement 
SN  - 0 435 82676 X
AV  - BF 378.A75 06 
PY  - 1966///
CY  - London
PB  - Heinemann
KW  - Basic Topics In Sociological Method
ER  -