Tullis, E. L., & Laney, F. B. (1933). The composition and origin of certain commercial clays of northern Idaho. School of Mines, University of Idaho.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Tullis, Edward L., و Francis Baker Laney. The Composition and Origin of Certain Commercial Clays of Northern Idaho. Moscow: School of Mines, University of Idaho, 1933.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Tullis, Edward L., و Francis Baker Laney. The Composition and Origin of Certain Commercial Clays of Northern Idaho. School of Mines, University of Idaho, 1933.
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