Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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