APA (7 वां संस्करण) प्रशस्ति पत्र

(1987). Reprint Series. Handelshögskolan I Stockholm. Stockholm Scholl of Economics, Dep. of. Int. Economics, Dep. of Int. Economics.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Reprint Series. Estocolmo: Handelshögskolan I Stockholm. Stockholm Scholl of Economics, Dep. of. Int. Economics, Dep. of Int. Economics, 1987.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Reprint Series. Handelshögskolan I Stockholm. Stockholm Scholl of Economics, Dep. of. Int. Economics, Dep. of Int. Economics, 1987.