TY - BOOK AU - Duggal, S.K TI - Limit states design of steel structures SN - 978-93-5316-487-4 U1 - 624.1821 23rd.ed PY - 2012/// CY - New Delhi PB - Tata McGraw Hill KW - Building, iron and steel KW - Steel structural KW - structural design KW - structural engineering N1 - Includes bibliography references,index ER -