International Trade Center UNCTAD/WTO. (1998). ISO 9000: A workbook for service firms in developing countries. International Trade Center.
Čikaški stil citiranja (17. izdanje)International Trade Center UNCTAD/WTO. ISO 9000: A Workbook for Service Firms in Developing Countries. Geneva: International Trade Center, 1998.
MLA način citiranja (9. izdanje)International Trade Center UNCTAD/WTO. ISO 9000: A Workbook for Service Firms in Developing Countries. International Trade Center, 1998.
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