TY  - BOOK
AU  - Gaviola, Lorenzo O.
AU  - 
ED  - 
ED  - 
ED  - 
ED  - 
SN  - 2
PY  - 1988///.46
CY  - Manila
PB  - Technological University of the Philippines
KW  - 
KW  - 2
KW  - 0
KW  - 6
KW  - 20
N1  - 5
ER  -