APA (7 वां संस्करण) प्रशस्ति पत्र
Organisation for Economic Co-operation and Development. Secretary-General & ProQuest (Firm). (2011). Peru 2011. OECD.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Organisation for Economic Co-operation and Development. Secretary-General और ProQuest (Firm). Peru 2011. Paris: OECD, 2011.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Organisation for Economic Co-operation and Development. Secretary-General और ProQuest (Firm). Peru 2011. OECD, 2011.
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