एपीए उद्धरण

Krishnamachar,BS. (1978). Design of steel structures. Mc Graw Hill publishing.

शिकागो स्टाइल उद्धरण

Krishnamachar,BS. Design of Steel Structures. New Delhi: Mc Graw Hill publishing, 1978.

एमएलए उद्धरण

Krishnamachar,BS. Design of Steel Structures. Mc Graw Hill publishing, 1978.