TY  - BOOK
AU  - Wentworth, George
AU  - Smith, David Eugene
TI  - Plane and spherical trigonometry and tables
T2  - Wentworth-Smith mathematical series
U1  - BIB-TELLO/18.08.01/1255 
PY  - 1943///
CY  - Boston
PB  - Ginn and Company, 
KW  - MATEMÁTICAS
ER  -