TY  - BOOK
AU  - Edwards, Cyril.
AU  - Wilkinson, Angela
TI  - Trigonometry
SN  - 0356046702 (hbk.) 
U1  - 516​.24  
PY  - 1974///
CY  - London : 
PB  - Macdonald and Co., 
KW  - Trigonometry
KW  - Trigonometry - For schools
KW  - Mathematics
ER  -