TY  - BOOK
AU  - Durell,C V
AU  - Robson,A
TI  - Advanced trigometry
U1  - 516.24 19
PY  - 1930///
CY  - London
PB  - G. Bell and Sons, Ltd.
KW  - Trigonometry
KW  - Spines
KW  - Mahtematics
N2  - Computer Science
ER  -