Woodlock, T. F., Seligman, E. R. A., Vanderlip, F. A., Hepburn, A. B., Strauss, A., Nash, W. A., . . . Perkins, G. W. (1908). The Currency problem and the present financial situation: A series of addresses delivered at Columbia University, 1907-1908. Columbia University Press.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Woodlock, Thomas F., Edwin R. A. Seligman, Frank A. Vanderlip, A. Barton Hepburn, Albert Strauss, William Alexander Nash, James Graham Cannon, Paul M. Warburg, و George W. Perkins. The Currency Problem and the Present Financial Situation: A Series of Addresses Delivered at Columbia University, 1907-1908. New York: Columbia University Press, 1908.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Woodlock, Thomas F., et al. The Currency Problem and the Present Financial Situation: A Series of Addresses Delivered at Columbia University, 1907-1908. Columbia University Press, 1908.