United National Educational, Scientific and Cultural Organization. (1956). Copyright laws and treaties of the world. United Nations Educational, Scientific and Cultural Organization and the Bureau of National Affairs, Washington.
Citace podle Chicago (17th ed.)United National Educational, Scientific and Cultural Organization. Copyright Laws and Treaties of the World. Paris: United Nations Educational, Scientific and Cultural Organization and the Bureau of National Affairs, Washington, 1956.
Citace podle MLA (9th ed.)United National Educational, Scientific and Cultural Organization. Copyright Laws and Treaties of the World. United Nations Educational, Scientific and Cultural Organization and the Bureau of National Affairs, Washington, 1956.
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