TY  - BOOK
AU  - Ayres, Frank 
TI  - Schaum's outline of theory and problems of plane and spherical trigonometry
T2  - Schaum's Outline Series
SN  - 70026513
PY  - 1954///
CY  - New York
PB  - McGraw-Hill Book Company
KW  - TrignometryPlane Trignometry
ER  -