Econometric Specialists, inc., New York, Venezuelan Chamber of Commerce of the United States, & Mitchell, W. L. R. (1954). United States trade with Venezuela: A survey showing location of producers of United States exports.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Econometric Specialists, inc., New York, Venezuelan Chamber of Commerce of the United States, و Walter Le Roy Mitchell. United States Trade with Venezuela: A Survey Showing Location of Producers of United States Exports. New York, 1954.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Econometric Specialists, inc., New York, et al. United States Trade with Venezuela: A Survey Showing Location of Producers of United States Exports. 1954.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.