APA (7th ed.) Citation

Herring, J. M. (1929). The problem of weak railroads: Their relation to an adequate transportation system. Univ. of Pennsylvania Press.

Chicago Style (17th ed.) Citation

Herring, James Morton. The Problem of Weak Railroads: Their Relation to an Adequate Transportation System. Philadelphia: Univ. of Pennsylvania Press, 1929.

MLA (9th ed.) Citation

Herring, James Morton. The Problem of Weak Railroads: Their Relation to an Adequate Transportation System. Univ. of Pennsylvania Press, 1929.