TY  - BOOK
AU  - Belson,William A.
TI  - Validity in survey research: with special reference to the techniques of intensive interviewing and progressive modification for testing and constructing difficult or sensitive measures for use in survey research : a report 
SN  - 0566005107 :
U1  - 307.2 
PY  - 1986///
CY  - Aldershot, Hants, England, Brookfield, Vt., USA
PB  - Gower
KW  - Social surveys
KW  - Market surveys
KW  - Interviewing
KW  - Social sciences
KW  - Methodology
N1  - One microfiche in pocket; Includes index
ER  -