Proceedings Of The Ninth Session Of The Committee On Natural Resources: Incorporating The Triennial Review Of. - UN (New York: UN.Escap, 1983)
Bibl. Dipnotlar (2 Nin Devamı) Mıneral Developmentactıvıtıes In The Escap Regıon, 1979-1981
Keywords: Madenler Ve Maden Kaynakları