TY  - BOOK
AU  - Weller, Susan C
TI  - Systematic data collection
SN  - 0-8039-3073-9
U1  - 300.72  
PY  - 1988///
CY  - New Delhit
PB  - Sage
KW  - Social sciences
N1  - Qualitative Research Methods; no.10
ER  -