एपीए उद्धरण

Pyke, F., & Sengenberger, W. (1992). Industrial districts and local economic regeneration. International institute.

शिकागो स्टाइल उद्धरण

Pyke, Frank, और Werner Sengenberger. Industrial Districts and Local Economic Regeneration. Geneva: International institute, 1992.

एमएलए उद्धरण

Pyke, Frank, और Werner Sengenberger. Industrial Districts and Local Economic Regeneration. International institute, 1992.