APA استشهاد

(1987). Trade among developing countries: Theory, policy, issues and principal trends. World bank.

استشهاد بنمط شيكاغو

Trade Among Developing Countries: Theory, Policy, Issues and Principal Trends. Washington: World bank, 1987.

MLA استشهاد

Trade Among Developing Countries: Theory, Policy, Issues and Principal Trends. World bank, 1987.