TY  - BOOK
AU  - Landicho, Elizabeth D.C. 
AU  - Alferez, Merle S.
TI  - MSA Textbook in trigonometry / 
SN  - 9718740333 
AV  - QA 511 .L36 2001  CL12591
PY  - 2001///.
CY  -  Quezon City
PB  - MSA Academic Advancement Institute
KW  - Trigonometry
N1  - Includes bibliography.
ER  -