TY  - BOOK
AU  - COCHRAN, WILLIAM G.
TI  - SAMPLING TECHNIQUES
PY  - 1963///
CY  - NEW YORK
PB  - JOHN WILEY & SONS, INC
UR  - http://krc.immt.res.in:80/cgi-bin/koha/opac-detail.pl?biblionumber=1176
ER  -