Leech, N. E. (1973). International legal system: Cases and materials. Foundation.
Lua i Stíl Chicago (17ú heag.)Leech, Noyes E. International Legal System: Cases and Materials. Mineola: Foundation, 1973.
Lua MLA (9ú heag.)Leech, Noyes E. International Legal System: Cases and Materials. Foundation, 1973.
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