APA (7th ed.) Citation

Ritch, G. P. (1986). Developing a freeway data base model. Texas Transportation Institute, Texas A&M University System ; Available through National Technical Information Service.

Chicago Style (17th ed.) Citation

Ritch, Gene P. Developing a Freeway Data Base Model. College Station, Tex. : Springfield, Va.: Texas Transportation Institute, Texas A&M University System ; Available through National Technical Information Service, 1986.

MLA (9th ed.) Citation

Ritch, Gene P. Developing a Freeway Data Base Model. Texas Transportation Institute, Texas A&M University System ; Available through National Technical Information Service, 1986.