00522naa a2200145 a 450000100080000000500110000800800410001910000180006024500870007826000090016565300200017465300230019470000180021777301410023510486142006-09-22       1990    bl ---       0--  u    #d1 aCOOPER, P. F.  aSewage treatment by reed bed systemsbthe present situation in the United Kingdom.  c1990  aAguas residuais  aTratamento da agua1 aHOBSON, J. A.  tIn: HAMMER, D. A. Constructed wetlands for wastewater treatment: municipal, industrial and agricultural. Chelsea, Michigan: Lewis, 1990.