Não informado. (1962). Keio Business Review. Keio University, Society of Business and Commerce.
Chicago-referens (17:e uppl.)Não informado. Keio Business Review. Tokyo: Keio University, Society of Business and Commerce, 1962.
MLA-referens (8:e uppl.)Não informado. Keio Business Review. Keio University, Society of Business and Commerce, 1962.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.