APA (7th ed.) Citation

Ringert, J. F. (1992). A study of freeway capacity in Texas. [publisher not identified].

Chicago Style (17th ed.) Citation

Ringert, John Franklin. A Study of Freeway Capacity in Texas. [Place of publication not identified]: [publisher not identified], 1992.

MLA (9th ed.) Citation

Ringert, John Franklin. A Study of Freeway Capacity in Texas. [publisher not identified], 1992.