Vekeman, G. (2008). The telecom sector in the EU. Statistics in focus: Transport.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रVekeman, Guy. "The Telecom Sector in the EU." Statistics in Focus: Transport 2008.
एमएलए (8वां संस्करण) प्रशस्ति पत्रVekeman, Guy. "The Telecom Sector in the EU." Statistics in Focus: Transport, 2008.
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