Cita APA (7th ed.)
Stevens, J. E. Arizona Highways: February 1975. Department of Transportation.
Cita Chicago (17th ed.)
Stevens, James E. Arizona Highways: February 1975. Phoenix, EUA: Department of Transportation.
Cita MLA (9th ed.)
Stevens, James E. Arizona Highways: February 1975. Department of Transportation.
Atenció: Aquestes cites poden no estar 100% correctes.