Bruce, R. (1999). Overcoming obstacles to liberalization of the telecom sector in Estonia, Poland, the Czech Republic, Slovenia, and Hungary: An overview of key policy concerns and potential initiatives to facilitate the transition process. World Bank.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Bruce, Robert. Overcoming Obstacles to Liberalization of the Telecom Sector in Estonia, Poland, the Czech Republic, Slovenia, and Hungary: An Overview of Key Policy Concerns and Potential Initiatives to Facilitate the Transition Process. Washington, D.C: World Bank, 1999.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Bruce, Robert. Overcoming Obstacles to Liberalization of the Telecom Sector in Estonia, Poland, the Czech Republic, Slovenia, and Hungary: An Overview of Key Policy Concerns and Potential Initiatives to Facilitate the Transition Process. World Bank, 1999.