00704mam a2200229 a 45000010008000000030008000080050017000160080041000330350023000740350017000970400027001140820016001411000023001572450039001802600048002193000035002674900044003025040041003466500015003876500039004028300033004412003813BD-DhUL20160519081700.0970715s1997    gw a     b    000 0 eng d  a(OCoLC)ocm37294077  a(NNC)2003813  aEUNcEUNdOLAdBD-DhUL  a333.95bMAO1 aMargalef, Ramón.10aOur biosphere /cRamón Margalef.  aOldendorf/Luhe :bEcology Institute,c1997.  axxii, 176 p. :bill. ;c25 cm.1 aExcellence in ecology,x0932-2205 ;v10  aIncludes bibliographical references. 0aBiosphere. 0aNaturexEffect of human beings on. 0aExcellence in ecology ;v10.