Elements of plane trigonometry,
by Alfred Monroe Kenyon ... and Louis Ingold.
APA Citation
Kenyon, A. Monroe., Ingold, L. (19211919). Elements of plane trigonometry. New York: The Macmillan company.
MLA Citation
Kenyon, Alfred Monroe, 1869-, and Louis Ingold. Elements of Plane Trigonometry. New York: The Macmillan company, 19211919.
Warning: These citations may not always be complete (especially for serials).