Organisation for Economic Co-operation and Development & ProQuest (Firm). (2009). Measuring capital: OECD manual 2009 (2nd ed.). OECD.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOrganisation for Economic Co-operation and Development और ProQuest (Firm). Measuring Capital: OECD Manual 2009. 2nd ed. Paris: OECD, 2009.
एमएलए (9वां संस्करण) प्रशस्ति पत्रOrganisation for Economic Co-operation and Development और ProQuest (Firm). Measuring Capital: OECD Manual 2009. 2nd ed. OECD, 2009.
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