TY  - BOOK
AU  - Ayres,Frank
TI  - Schaum's outline of theory and problems of plane and spherical trigonometry
T2  - Schaum's outline series
AV  - QA537 A8
PY  - 1954///
CY  - New York
PB  - Schaum
KW  - Trigonometría
KW  - Problemas, ejercicios, etc
ER  -