00322nam a2200133 a 450000500170000002000150001708200160003210000060004811000220005424500330007626000360010930000240014550000190016920251203091701.0  a0121476863  a577.14bGLO  d_  aButcher, Samuel S  aGlobal biogeochemical cycles  aNew DelhibAcademic Pressc1992  axvi,380p.c24cmbPB  aincludes index