TY  - BOOK
T1  - Schaum's outline of theory and problems of plane and spherical trigonometry
A1  - Ayres, Frank
LA  - English
PP  - New York
PB  - Schaum publishing
YR  - 1954
UL  - https://colectivo.uloyola.es/Record/L39190
OP  - 207
KW  - Trigonometría
ER  -