TY  - BOOK
AU  - Oppenheim,A.N.
TI  - Questionnaire design and attitude measurement
T2  - Heinemann books on sociology 
U1  - 152.4/52  
PY  - 1966///
CY  - London
PB  - Heinemann
KW  - Attitude (Psychology)
KW  - Testing.
KW  - Questionnaires.
ER  -