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.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিLeonhardt, 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.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিLeonhardt, 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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