TY  - BOOK
AU  - Casley,D.J.
AU  - 
TI  - Data collection in developing countries
SN  - 0194424251
U1  - 001.4222 23
PY  - 1989///
CY  - Oxford : 
PB  - Oxford University Press , 
KW  - Questionnaires - Data processing
ER  -