A brief course in trigonometry, by David Raymond Curtiss and Elton James Moulton ...
Contributors: Moulton, Elton James, b. 1887, joint author.
Publisher: D.C. Heath and company
Published: 1940
Place of publication: Boston; New York [etc.]
Language: eng
Number of pages: 118
Subjects: Plane trigonometry.
Notes: "Answers": p. 109-118.