TY  - BOOK
AU  - Cabansay, Myrna A.
TI  - Trigonometry: Simplified for beginners
U1  - 516.7 C11t 1978 
PY  - 1978///
CY  - Manila
PB  - Sinag-tala Publishers, Inc.
UR  - https://sic-library.pilc.org.ph/cgi-bin/koha/opac-retrieve-file.pl?id=1938bf4a61aabaa3a8abe1c53eb4d63b
ER  -