TY  - BOOK
AU  - Rider, Paul R.
TI  - Plane and spherical trigonometry
SN  - 9710819186
AV  - QA 531 .R544 1971
U1  - MSF 514  
PY  - 1971///
CY  - New York
PB  - Macmillan Company
KW  - Trigonometry
ER  -