Kahn, J., & Klein, J. J. 1. (1914). Principles and methods in commercial education ; a textbook for teachers, students and business men. The Macmillan company.
Citazione stile Chigago Style (17a edizione)Kahn, Joseph, e Joseph Jerome 1884 Klein. Principles and Methods in Commercial Education ; a Textbook for Teachers, Students and Business Men. New York: The Macmillan company, 1914.
Citatione MLA (9a ed.)Kahn, Joseph, e Joseph Jerome 1884 Klein. Principles and Methods in Commercial Education ; a Textbook for Teachers, Students and Business Men. The Macmillan company, 1914.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.