Cita APA (7th ed.)
(2004). AASHTO Provisional Standards. AASHTO.
Cita Chicago (17th ed.)
AASHTO Provisional Standards. Washington, DC: AASHTO, 2004.
Cita MLA (9th ed.)
AASHTO Provisional Standards. AASHTO, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.