TY  - BOOK
AU  - Parel, Cristina P.
ED  - Philippine Social Science Council
TI  - Social survey research design
T2  - (PSSC social survey series ; no. 1)
SN  - 9718514066
AV  - RF H 62.5 S63 1978 
PY  - 1978///
CY  - Quezon City
PB  - PSSC
KW  - Social sciences
KW  - Research
KW  - Learning
KW  - Instructional system
ER  -