Cita APA (7a ed.)

Hobson, E. W. (1957). A teatrise on plane and advanced trigonometry (7a. ed.). Dover.

Cita Chicago Style (17a ed.)

Hobson, Ernest William. A Teatrise on Plane and Advanced Trigonometry. 7a. ed. New York: Dover, 1957.

Cita MLA (8a ed.)

Hobson, Ernest William. A Teatrise on Plane and Advanced Trigonometry. 7a. ed. Dover, 1957.