Definitions of small scale mining : a critical evaluation taking account of the Papua New Guinea situation /

समान संसाधन

• Workshop [on] small scale gold mining in Papua New Guinea : proceedings /
  प्रकाशित: (1994)
• Small scale gold mining in Papua New Guinea a preliminary summary report
  प्रकाशित: (1983)
• Small scale gold mining in Papua New Guinea : a preliminary summary report/
  प्रकाशित: (1983)
• Proceedings of the Conference on Small Scale Mining in Papua New Guinea, held at the University of Technology, Lae, 4th-8th June, 1983
  प्रकाशित: (1983)
• Proceedings of the Conference on Small Scale Mining in Papua New Guinea : held at the University of Technology, Lae, 4th-8th June, 1983 /
  द्वारा: Conference on Small Scale Mining in Papua New Guinea (1983 : University of Technology, Lae)
  प्रकाशित: (1983)