Plane and spherical trigonometry
Wentworth, George
Plane and spherical trigonometry - Estados Unidos : Ginn and Company, 1915 - 104 p. : il., tbs. ; 24 cm. - Wentworth-Smith Mathematical .
Plane and spherical trigonometry - Estados Unidos : Ginn and Company, 1915 - 104 p. : il., tbs. ; 24 cm. - Wentworth-Smith Mathematical .