Não informado. (1978). Key to economic science and managerial sciences. Martinus Nijhoff.
Citace podle Chicago (17th ed.)Não informado. Key to Economic Science and Managerial Sciences. The Hague, Holanda: Martinus Nijhoff, 1978.
Citace podle MLA (8th ed.)Não informado. Key to Economic Science and Managerial Sciences. Martinus Nijhoff, 1978.
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