APA (7th ed.) Citation

Vodrazka, W. C., & Staha, J. L. (1972). Functional classification of highway systems. Center for Highway Research, University of Texas at Austin.

Chicago Style (17th ed.) Citation

Vodrazka, Walter C., and John L. Staha. Functional Classification of Highway Systems. [Austin]: Center for Highway Research, University of Texas at Austin, 1972.

MLA (9th ed.) Citation

Vodrazka, Walter C., and John L. Staha. Functional Classification of Highway Systems. Center for Highway Research, University of Texas at Austin, 1972.