Asphalt Institute. (1989). The asphalt handbook. Asphalt Institute.
Cita Chicago (17th ed.)Asphalt Institute. The Asphalt Handbook. Lexington: Asphalt Institute, 1989.
Cita MLA (9th ed.)Asphalt Institute. The Asphalt Handbook. Asphalt Institute, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.