TY  - BOOK
AU  - Ayres,Frank
AU  - ill.
TI  - Schaum's outline series theory and problems of plane spherical trigonometry including 680 solved problems completely solved in detail
AV  - MATH QA533.A98 
PY  - 1954///
CY  - n.p.
PB  -  : McGraw-Hill Book Company
KW  - Plane trigonometry
ER  -