Pasala Dayaratnam, . (1990). Design of Steel Structures. Allahabad: A.H. WHEELER & CO.
Pasala Dayaratnam, . 1990. Design of Steel Structures. Allahabad: A.H. WHEELER & CO.
Pasala Dayaratnam, . Design of Steel Structures. Allahabad: A.H. WHEELER & CO. 1990.