Lewis, R., & Stewart, R. (1961). The managers: A new examination of the English, German and American executive. New American Library.
Chicago-referens (17:e uppl.)Lewis, Roy, och Rosemary Stewart. The Managers: A New Examination of the English, German and American Executive. N. Y: New American Library, 1961.
MLA-referens (9:e uppl.)Lewis, Roy, och Rosemary Stewart. The Managers: A New Examination of the English, German and American Executive. New American Library, 1961.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.