Plane trigonometry /
by G. A. Wentworth.
APA Citation
Wentworth, G. A. (George Albert). (1891). Plane trigonometry. Boston: Ginn.
MLA Citation
Wentworth, G. A. (George Albert), 1835-1906. Plane Trigonometry. Boston: Ginn, 1891.
Warning: These citations may not always be complete (especially for serials).