Cita APA (7th ed.)
Duggal, S. (2017). Limit state design of steel structures (2nd ed.). McGraw Hill Education(I) Pvt Ltd.
Cita Chicago (17th ed.)
Duggal, S.K. Limit State Design of Steel Structures. 2nd ed. Chennai: McGraw Hill Education(I) Pvt Ltd, 2017.
Cita MLA (9th ed.)
Duggal, S.K. Limit State Design of Steel Structures. 2nd ed. McGraw Hill Education(I) Pvt Ltd, 2017.
Atenció: Aquestes cites poden no estar 100% correctes.