Smith, R. W. (1973). An analysis of the concept "strategic quality of international straits": A geographical perspective with focus on petroleum tanker transit and on the Malacca Strait.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Smith, Robert W. An Analysis of the Concept "Strategic Quality of International Straits": A Geographical Perspective with Focus on Petroleum Tanker Transit and on the Malacca Strait. 1973.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Smith, Robert W. An Analysis of the Concept "Strategic Quality of International Straits": A Geographical Perspective with Focus on Petroleum Tanker Transit and on the Malacca Strait. 1973.
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