Kahn, J., & Klein, J. J. 1. (1914). Principles and methods in commercial education ; a textbook for teachers, students and business men. The Macmillan company.
Citace podle Chicago (17th ed.)Kahn, Joseph, a Joseph Jerome 1884 Klein. Principles and Methods in Commercial Education ; a Textbook for Teachers, Students and Business Men. New York: The Macmillan company, 1914.
Citace podle MLA (9th ed.)Kahn, Joseph, a Joseph Jerome 1884 Klein. Principles and Methods in Commercial Education ; a Textbook for Teachers, Students and Business Men. The Macmillan company, 1914.
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