TY  - BOOK
AU  - Brenke, William C,
TI  - Plane and spherical trigonometry
U1  - 516.242 
PY  - 1943///
CY  - New York
PB  - The Dryden Press.
KW  - MCE
N1  - 0; 0; 0; 516_242000000000000_BRE
ER  -