OECD Economic Surveys: Poland. Organisation for Economic Cooperation & Development.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOECD Economic Surveys: Poland. Organisation for Economic Cooperation & Development.
एमएलए (8वां संस्करण) प्रशस्ति पत्रOECD Economic Surveys: Poland. Organisation for Economic Cooperation & Development.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.