एपीए उद्धरण

MacLaughlin, D., & Estrada, H. (2009). Structural steel design. Cengage Learning India Private Limited.

शिकागो स्टाइल उद्धरण

MacLaughlin, David, और Hector Estrada. Structural Steel Design. New Delhi: Cengage Learning India Private Limited, 2009.

एमएलए उद्धरण

MacLaughlin, David, और Hector Estrada. Structural Steel Design. Cengage Learning India Private Limited, 2009.