TY  - BOOK
T1  - Trigonometry
A1  - Hestenes, Marshall D.
A2  - Hill, Richard O., Jr., jt. auth
LA  - English
PP  - New Jersey
PB  - Prentice-Hall
YR  - 1986
ED  - 2nd ed.
UL  - https://tuklas.up.edu.ph/Record/UP-8027390931313493009
OP  - 326
CN  - QA 531 H6 1986
SN  - 013930744301
KW  - Trigonometry-Data processing.
KW  - Calculators.
ER  -