Leonhardt, R. D. (2006). Limits on the principle of permanent sovereignty over natural resources: Foreign investment and contractual guarantees. Revista de direito ambiental Vol. 11, n. 44 (out./dez. 2006), p. 164-201.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)Leonhardt, Roberta Danelon. Limits on the Principle of Permanent Sovereignty over Natural Resources: Foreign Investment and Contractual Guarantees. Revista de direito ambiental Vol. 11, n. 44 (out./dez. 2006), p. 164-201, 2006.
MLA -ийн эшлэл (9 дэх хэвлэлт)Leonhardt, Roberta Danelon. Limits on the Principle of Permanent Sovereignty over Natural Resources: Foreign Investment and Contractual Guarantees. Revista de direito ambiental Vol. 11, n. 44 (out./dez. 2006), p. 164-201, 2006.
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