TY  - BOOK
AU  - 
AU  - National Statistics Office.,
ED  - 
ED  - 
ED  - 
ED  - 
SN  - 2
PY  - 1980///.46
CY  - Manila :;Manila
PB  - National Census and Statistics Office,;National Statistics Office
KW  - 
KW  - 2
KW  - 0
KW  - 6
KW  - 20
N1  - 5
ER  -