003850000a22001330004500020002000000060000800020082001700028100001700045245006900062260003900131260000900170300000800179650006400187 a0 521 09750 9 a100 a631. 47 PER aPereira, H C aLand use and water resources: in temperate and tropical climates aLondon, Cambridge University Press c1973 a241 aWatershed management/watershed experiments-tropical forests