TY  - BOOK
TI  - Trigonometry: a functional approach 
U1  - 516.24 R36t 1970 
PY  - 1970///
CY  - New York
PB  - Holt, Rinehart and Winston, Inc.
KW  - Trigonometry
UR  - https://sic-library.pilc.org.ph/cgi-bin/koha/opac-retrieve-file.pl?id=bf6dbc42e38e34ed1b7b1bb207bd610f
ER  -