Earth, Air and water: resources and environment in the late 20th century

Antzeko izenburuak

• The Ecology of natural resources
  nork: SIMMONS, I. G.
  Argitaratua: (1981)
• Living Earth: resource for learning
  Argitaratua: (1994)
• Conservation of Our Natural Resources Based on Van Hise's The Conservation of Natural Resources in the United States/
  nork: Havemeyer, Loomis
  Argitaratua: (1938)
• Natural resources: ecology, economics, and policy /
  nork: Holechek, Jerry L.
  Argitaratua: (2000)
• Changing the face of the earth: culture, environment, history/
  nork: Simmons, I.G. (Ian Gordon), 1937-
  Argitaratua: (1989)