Madsen, D. A., & Shumaker, T. M. (1998). Civil drafting technology (3rd ed.). Prentice-Hall.
Cita Chicago (17th ed.)Madsen, David A., i Terence M. Shumaker. Civil Drafting Technology. 3rd ed. New Jersey: Prentice-Hall, 1998.
Cita MLA (8th ed.)Madsen, David A., i Terence M. Shumaker. Civil Drafting Technology. 3rd ed. Prentice-Hall, 1998.
Atenció: Aquestes cites poden no estar 100% correctes.