TY  - BOOK
AU  - Hirsch, Christian R
AU  - Schoen, Harold L
TI  - Trigonometry and its applications
SN  - 0-07-029074-1
U1  - 516.24 HIR 
PY  - 1990///
CY  - NEW YORK
PB  - MCGRAW HILL
KW  - TRIGONOMETRY
ER  -