Cita APA (7th ed.)

Duggal, S. K. (2009). Design of steel structures (3rd ed.). Tata McGraw Hill.

Cita Chicago (17th ed.)

Duggal, S. K. Design of Steel Structures. 3rd ed. New Delhi: Tata McGraw Hill, 2009.

Cita MLA (8th ed.)

Duggal, S. K. Design of Steel Structures. 3rd ed. Tata McGraw Hill, 2009.