SpringerLink (Online service), Polychronidou, P., & Karasavvoglou, A. (2014). Economic crisis in Europe and the Balkans: Problems and prospects. Springer International Publishing.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSpringerLink (Online service), Persefoni Polychronidou, और Anastasios Karasavvoglou. Economic Crisis in Europe and the Balkans: Problems and Prospects. Heidelberg: Springer International Publishing, 2014.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSpringerLink (Online service), et al. Economic Crisis in Europe and the Balkans: Problems and Prospects. Springer International Publishing, 2014.
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