APA (7th ed.) Citation

Ripley, W. Z. (1907). Railway problems; ed. with an introduction, by William Z. Ripley. Ginn and Company.

Chicago Style (17th ed.) Citation

Ripley, William Zebina. Railway Problems; Ed. with an Introduction, by William Z. Ripley. New York: Ginn and Company, 1907.

MLA (9th ed.) Citation

Ripley, William Zebina. Railway Problems; Ed. with an Introduction, by William Z. Ripley. Ginn and Company, 1907.