Gaya APA
Duggal, S.K.. (2000).
Design of steel structures .
New Delhi:
Tata Mc Graw hill.
Gaya Chicago
Duggal, S.K..
Design of steel structures.
New Delhi:
Tata Mc Graw hill,
2000.
.
Gaya MLA
Duggal, S.K..
Design of steel structures.
New Delhi:
Tata Mc Graw hill,
2000.
.
Gaya Turabian
Duggal, S.K..
Design of steel structures.
New Delhi:
Tata Mc Graw hill,
2000.
.