TY  - BOOK
AU  - MORRIS H HANSEN
TI  - SAMPLE SURVERY METHODS AND THEORY
U1  - GN519.93H198S 
PY  - 1953///
CY  - NEW YORK
PB  - JOHN WILEY & SONS, INC.
KW  - SAMPLE SURVERY METHODS AND THEORY
N1  - MODERN BOOK HOUSE
ER  -