TY  - BOOK
ED  - United Nations. 
TI  - A short manual on sampling
PY  - 1960///
CY  - New York : 
PB  - United Nations, 
KW  - Sampling (Statistics)
N1  -  V. 1. Elements of sample survey theory. --V. 2. Computer programs fo r sample designs;  Includes bibliography
ER  -