APA (7 वां संस्करण) प्रशस्ति पत्र
Organisation for Economic Co-operation and Development & ProQuest (Firm). (2009). OECD principles for integrity in public procurement. OECD.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Organisation for Economic Co-operation and Development और ProQuest (Firm). OECD Principles for Integrity in Public Procurement. Paris: OECD, 2009.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Organisation for Economic Co-operation and Development और ProQuest (Firm). OECD Principles for Integrity in Public Procurement. OECD, 2009.
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