Pyke, F. (1990). Industrial districts and inter-firm co-operation in Italy. International Institute for Labour Studies.
Chicago-čujuhus (17. p.)Pyke, F. Industrial Districts and Inter-firm Co-operation in Italy. Geneva: International Institute for Labour Studies, 1990.
MLA-čujuhus (9. p.)Pyke, F. Industrial Districts and Inter-firm Co-operation in Italy. International Institute for Labour Studies, 1990.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.