TY  - BOOK
AU  - Parten Mildred
TI  - Surveys polls and samples :  Practical procedures
T2  - Haprer's social science series ed by F Stuart Chapin; 3
U1  - Y1:77u, J0 
PY  - 1950///
CY  - NA
PB  - NA       
KW  - SOCIOLOGY
ER  -