APA (7th ed.) Citation

Ripley, W. Z. (1913). Railway problems (Rev. ed.). Ginn & company.

Chicago Style (17th ed.) Citation

Ripley, William Zebina. Railway Problems. Rev. ed. Boston, New York [etc.]: Ginn & company, 1913.

MLA (9th ed.) Citation

Ripley, William Zebina. Railway Problems. Rev. ed. Ginn & company, 1913.