TY  - BOOK
AU  - Ayres,Frank
TI  - Theory and problems of plane and spherical trigonometry / 
T2  - Schaum´s outline series
AV  - QA531 A97 1954 
PY  - 1954///
CY  - New York : 
PB  - Schaum publishing co., 
KW  - Lemb
KW  - Trigonometria esferica
KW  - Trigonometria plana
N1  - Incluye índice
ER  -