TY  - BOOK
AU  - Casley, D.J.
TI  - Data collection in developing countries
U1  - 311.213.2:308(-77) M7 
PY  - 1981///
CY  - Oxford
PB  - Clarendon
KW  -  D.J.Casley and D.A.Lury.
KW  - Lury, D.A.
KW  - Statistics
ER  -