APA (7 वां संस्करण) प्रशस्ति पत्र
ebrary, Inc, & Papatheodorou, A. (2006). Corporate rivalry and market power: Competition issues in the tourism industry. I.B. Tauris.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
ebrary, Inc, और Andreas Papatheodorou. Corporate Rivalry and Market Power: Competition Issues in the Tourism Industry. London: I.B. Tauris, 2006.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
ebrary, Inc, और Andreas Papatheodorou. Corporate Rivalry and Market Power: Competition Issues in the Tourism Industry. I.B. Tauris, 2006.
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