Khan, M. A. G. (1978). ABC of Civil Engineering: Materials, Construction, Roads & Earth works (3rd ed.). Mohammad Enayetullah Khan.
Cita Chicago (17th ed.)Khan, Md. Abdul Gafur. ABC of Civil Engineering: Materials, Construction, Roads & Earth Works. 3rd ed. Dacca: Mohammad Enayetullah Khan, 1978.
Cita MLA (9th ed.)Khan, Md. Abdul Gafur. ABC of Civil Engineering: Materials, Construction, Roads & Earth Works. 3rd ed. Mohammad Enayetullah Khan, 1978.
Atenció: Aquestes cites poden no estar 100% correctes.