एपीए उद्धरण

Zekely, J. (1973). Steel Industry and the Environment. Marcel Dekker.

शिकागो स्टाइल उद्धरण

Zekely, Julian. Steel Industry and the Environment. New York: Marcel Dekker, 1973.

एमएलए उद्धरण

Zekely, Julian. Steel Industry and the Environment. Marcel Dekker, 1973.