TY  - BOOK
AU  - Fowler,Floyd J.
TI  - Survey research methods
T2  - Applied Social Research Methods Series
SN  - 0-8039-5049-7
AV  - HN29 F68 1993
PY  - 1993///
CY  - Newbury Park, Calif.
PB  - SAGE
N1  - Bibliografia : p. 149-153
ER  -