TY  - BOOK
AU  - De Leon, Hector S.
TI  - The national internal revenue code: annotated (P.D. No. 1158, as amended)
AV  - F HJ 9117.P6 D377 1989 
PY  - 1989///
CY  - Manila
PB  - Rex Book Store
KW  - Internal revenue -- Philippines
ER  -