APA aipamena

Duggal, S. K. (2015). Limit state design of steel structures (2nd ed.). McGraw hill.

Chicago Style aipamena

Duggal, S K. Limit State Design of Steel Structures. 2nd ed. New Delhi: McGraw hill, 2015.

MLA aipamena

Duggal, S K. Limit State Design of Steel Structures. 2nd ed. McGraw hill, 2015.