Rosic, H. (2012). The Economic and Environmental Sustainability of Dual Sourcing. Peter Lang International Academic Publishing Group.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRosic, Heidrun. The Economic and Environmental Sustainability of Dual Sourcing. Bern: Peter Lang International Academic Publishing Group, 2012.
एमएलए (9वां संस्करण) प्रशस्ति पत्रRosic, Heidrun. The Economic and Environmental Sustainability of Dual Sourcing. Peter Lang International Academic Publishing Group, 2012.
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