Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.