00302nam a2200097Ia 4500080001800000100001100018245012000029260002600149300001000175583001900185  a07.08.01 U586  aUNESCO  aDisappearing tropical forests : water-related issues and problems of the humid tropics and other warm humid regions  bUNESCOaParisFRc1991  a48 p.  c3/7/00kM2LMGR