Casley, D.J.
Data collection in developing countries/
D.J Casley, D.A. Lury.
- 2nd ed.
- Oxford : Clarendon P., 1987.
- ill. xi, 225 p. :
Includes bibliographical references.
0198772823
Sampling (Statistics).
Developing countries--Statistical services.
HA31.2 C38