TY  - BOOK
AU  - Ayres, Frank
TI  - Schaum'S Outline of Theory And Problems of Plane And Spherical Trigononometry
U1  - 516.24 AYR/S 
PY  - 1954///
CY  - New York
PB  - Mcgraw Hill Book Company
KW  - Trigonometry
ER  -