Lewis, R., & Stewart, R. (1961). The managers: A new examination of the English, German and American executive. New American Library.
Chicago-viite (17. p.)Lewis, Roy, ja Rosemary Stewart. The Managers: A New Examination of the English, German and American Executive. N. Y: New American Library, 1961.
MLA-viite (9. p.)Lewis, Roy, ja Rosemary Stewart. The Managers: A New Examination of the English, German and American Executive. New American Library, 1961.
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