National Industrial Conference Board. (1945). Studies in business economics. [s.n.].
Citazione stile Chigago Style (17a edizione)National Industrial Conference Board. Studies in Business Economics. New York: [s.n.], 1945.
Citatione MLA (9a ed.)National Industrial Conference Board. Studies in Business Economics. [s.n.], 1945.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.