Plane and spherical trigonometry /
by G.A. Wentworth.
APA Citation
Wentworth, G. A. (George Albert)., Hill, G. A. (George Anthony). (19011882). Plane and spherical trigonometry. Rev. ed. Boston: Ginn.
MLA Citation
Wentworth, G. A. (George Albert), 1835-1906, and G. A. (George Anthony) Hill. Plane And Spherical Trigonometry. Rev. ed. Boston: Ginn, 19011882.
Warning: These citations may not always be complete (especially for serials).