APA (7 वां संस्करण) प्रशस्ति पत्र
Organisation for Economic Co-operation and Development & ProQuest (Firm). (2009). Green at fifteen?: How 15-year-olds perform in environmental science and geoscience in PISA 2006. OECD.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Organisation for Economic Co-operation and Development और ProQuest (Firm). Green at Fifteen?: How 15-year-olds Perform in Environmental Science and Geoscience in PISA 2006. Paris: OECD, 2009.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Organisation for Economic Co-operation and Development और ProQuest (Firm). Green at Fifteen?: How 15-year-olds Perform in Environmental Science and Geoscience in PISA 2006. OECD, 2009.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.