APA (7 वां संस्करण) प्रशस्ति पत्र

Organisation for Economic Co-operation and Development & ProQuest (Firm). (2008). OECD economic surveys: Poland. OECD.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Organisation for Economic Co-operation and Development और ProQuest (Firm). OECD Economic Surveys: Poland. Paris: OECD, 2008.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Organisation for Economic Co-operation and Development और ProQuest (Firm). OECD Economic Surveys: Poland. OECD, 2008.