TY  - BOOK
AU  - Custodio, R.M
TI  - Butil Kaisipan 
SN  - 9719013141
U1  - GSL Fil 800 C95 1994 
PY  - 1999///
CY  - Valenzuela, Manila
PB  - TRU-COPY Publishing House, Inc
ER  -