TY  - GEN
AU  - NACHMIAS, Chava
AU  - NACHMIAS, David
TI  - Research Methods in the Social Sciences
U1  - 001.42/NAC 
PY  - 1981///
CY  - NEW YORK
PB  - St. Martin's Press
N1  - DATA COLLECTION & PROCESSING; RESEARCH METHODS; SURVEY RESEARCH
ER  -