United Nations. Economic Commission for Asia and the Far East. (1952). Coal and iron ore resources of Asia and the Far East; prepared by the Secretariat. s.n.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUnited Nations. Economic Commission for Asia and the Far East. Coal and Iron Ore Resources of Asia and the Far East; Prepared by the Secretariat. Bangkok: s.n, 1952.
एमएलए (9वां संस्करण) प्रशस्ति पत्रUnited Nations. Economic Commission for Asia and the Far East. Coal and Iron Ore Resources of Asia and the Far East; Prepared by the Secretariat. s.n, 1952.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.