Challenge for survival : land, air, and water for man in megalopolis /

Míreanna comhchosúla

• Survival : man and his environment.
  de réir: Arthur, Don R. (Don Ramsay)
  Foilsithe / Cruthaithe: (1969)
• The comedy of survival; studies in literary ecology,
  de réir: Meeker, Joseph W.
  Foilsithe / Cruthaithe: (1974)
• A Blueprint for survival.
  Foilsithe / Cruthaithe: (1972)
• Technology and survival /
  de réir: Braun, Ernest, 1925-
  Foilsithe / Cruthaithe: (1977)
• Where have all the flowers, fishes, birds, trees, water, and air gone? : What ecology is all about.
  de réir: Segerberg, Osborn
  Foilsithe / Cruthaithe: (1971)