Wentworth, George
Plane and spherical trigonometry - 1st ed. - Boston Ginn 1951 - v, 232+108p. 247 p. diagrs 22 cm.
Trigonometry
514.083 / WEN/1951
Plane and spherical trigonometry - 1st ed. - Boston Ginn 1951 - v, 232+108p. 247 p. diagrs 22 cm.
Trigonometry
514.083 / WEN/1951