APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Hobson, E. W. A Treatise on Plane and Advanced Trigonometry. 7.ed. New York: Dover, 1957.

MLA (9th ed.) Citation

Hobson, E. W. A Treatise on Plane and Advanced Trigonometry. 7.ed. Dover, 1957.