Agren, L. (1990). .Swedish direct investment in the U.S. IIB, Institute of International Business, Stockholm School of Economics.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAgren, Lars. .Swedish Direct Investment in the U.S. Stockholm, Sweden: IIB, Institute of International Business, Stockholm School of Economics, 1990.
एमएलए (9वां संस्करण) प्रशस्ति पत्रAgren, Lars. .Swedish Direct Investment in the U.S. IIB, Institute of International Business, Stockholm School of Economics, 1990.