एपीए उद्धरण

Ramamrutham, S. (1975). Design of steel structures (Rev.ed.2.). Dhanpat Rai and sons.

शिकागो स्टाइल उद्धरण

Ramamrutham, S. Design of Steel Structures. Rev.ed.2. New Delhi: Dhanpat Rai and sons, 1975.

एमएलए उद्धरण

Ramamrutham, S. Design of Steel Structures. Rev.ed.2. Dhanpat Rai and sons, 1975.