APA (7th ed.) Citation

Vodrazka, W. C., & Michael, H. L. (1968). Highway system subclassification based on synthesis of intercity travel. Purdue University.

Chicago Style (17th ed.) Citation

Vodrazka, Walter Charles, and Harold L. Michael. Highway System Subclassification Based on Synthesis of Intercity Travel. Lafayette: Purdue University, 1968.

MLA (9th ed.) Citation

Vodrazka, Walter Charles, and Harold L. Michael. Highway System Subclassification Based on Synthesis of Intercity Travel. Purdue University, 1968.