DUGGAL S K. (2013). DESIGN OF STEEL STRUCTURES (3RD ED.). MCGRAW HILL EDUCATION PVT LTD.
Chicago-čujuhus (17. p.)DUGGAL S K. DESIGN OF STEEL STRUCTURES. 3RD ED. NEW DELHI: MCGRAW HILL EDUCATION PVT LTD, 2013.
MLA-čujuhus (9. p.)DUGGAL S K. DESIGN OF STEEL STRUCTURES. 3RD ED. MCGRAW HILL EDUCATION PVT LTD, 2013.
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