Observations on the gold recovery operations at New Guinea Goldfields Mill on 1st and 2nd August 1981 /

Lignende værker

• Handbook of small-scale gold mining for Papua New Guinea /
  af: Blowers, Mike, 1941-
  Udgivet: (1988)
• Prospecting and operating small gold placers /
  af: Boericke, William Fay, 1884-
  Udgivet: (1936)
• The gold crusades : a social history of gold rushes, 1849-1929 /
  af: Fetherling, Doug
  Udgivet: (1988)
• Prospecting and operating small gold placers /
  af: Boericke, William F.
  Udgivet: (1936)
• Economic geology of the Morobe Goldfield, Papua New Guinea /
  af: Lowenstein, P. L.
  Udgivet: (1982)