APA (7th ed.) Citation

Gibson, G. A. (1904). An elementary treatise on graphs. Macmillan.

Chicago Style (17th ed.) Citation

Gibson, George A. An Elementary Treatise on Graphs. London, New York: Macmillan, 1904.

MLA (9th ed.) Citation

Gibson, George A. An Elementary Treatise on Graphs. Macmillan, 1904.