TY  - BOOK
AU  - Oppenheim A.N.
TI  - Questionnaire design and attitute measurement
SN  - 0-435-82676-X
U1  - 371.26 OPP 
PY  - 1966///
CY  - London
PB  - Heinemann
N1  - Includes bibliographical references and index
ER  -