League of Nations. Secretariat. Economic and Financial Section. (1928). Memorandum on production and trade. Submitted to the Preparatory Committee for the International Economic Conference. Imp. de la Tribune.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLeague of Nations. Secretariat. Economic and Financial Section. Memorandum on Production and Trade. Submitted to the Preparatory Committee for the International Economic Conference. Geneva: Imp. de la Tribune, 1928.
एमएलए (9वां संस्करण) प्रशस्ति पत्रLeague of Nations. Secretariat. Economic and Financial Section. Memorandum on Production and Trade. Submitted to the Preparatory Committee for the International Economic Conference. Imp. de la Tribune, 1928.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.