00267nam a2200097Ia 4500080001800000245003000018260004600048300001600094500004000110583001900150  a16.02.02 W927  aWorld resources 1990-1991  bOxford University PressaNew YorkUSc1990  axiv, 383 p.  aIncludes bibliographical references  c3/7/00kM2LMGR