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.
Lua i Stíl Chicago (17ú heag.)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.
Lua MLA (9ú heag.)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.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.