TY  - GEN
AU  - BULMER, Martin
AU  - WARWICK,Donald
TI  - Social research in developing countries : surveys and censuses in the third world
SN  - 0-471-10352-7
CY  - New-York
KW  - recherche
KW  - science sociale
KW  - communication
KW  - pays en développement
ER  -