TY  - GEN
AU  - LitwinsMark S
AU  - Mark S Litwin
TI  - How to Measure Survey Reliability and Validity
SN  - 0803957041
AV  - HN29  
U1  - 300/.723  
PY  - 1995///
CY  - United Kindom
PB  - Sage Publications
KW  - Social surveys
ER  -