Marketing, distribution and use of fertilizer in Papua New Guinea : a report /

Lignende værker

• Fertility in Papua New Guinea : a study of levels, patterns and change based on census data /
  af: Bakker, M. L. (Martin Luitje)
  Udgivet: (1986)
• Fertility change in Papua New Guinea during the late 1960s : evidence from the 1966 and 1971 censuses /
  af: McDevitt, Thomas M.
  Udgivet: (1979)
• Response of grain sorghum to phosphorus and potassium in dry lowlands of Papua New Guinea /
  af: Vance, P.N
  Udgivet: (1981)
• Fertilizer technology & use
  Udgivet: (1971)
• Fertilizer technology and use /
  Udgivet: (1985)