TY  - BOOK
AU  - Drooyan, Irving
AU  - Hadel, Walter
TI  - Trigonometry: An Analytic Approach
AV  - QA 533 .D76 1967 
PY  - 1967///
CY  - New York
PB  - The Macmillan Company
N1  - Includes index
ER  -