APA-referens (7:e uppl.)

Organization for European Economic Cooperation. European Productivity Agency. (1958). The influence of sales taxes on productivity. [s.n.

Chicago-referens (17:e uppl.)

Organization for European Economic Cooperation. European Productivity Agency. The Influence of Sales Taxes on Productivity. Paris: [s.n, 1958.

MLA-referens (9:e uppl.)

Organization for European Economic Cooperation. European Productivity Agency. The Influence of Sales Taxes on Productivity. [s.n, 1958.