338.9
B878S
Brown, Lester R
 State of the world 1990 a worldwatch institute report on progress toward a sustainable society \ Lester R Brown
- New York : W W Norton, 1990.
 xvi, 253p.
  ISBN: 0-393-20788-0
C545
  Subjects: Economic history; Economic policy; Populatiopn; Water-supply Agriculture.