00326nam a2200157Ia 4500008004100000020000900041035001000050082001500060100002100075245002600096250000600122260002100128300000700149500000600156650000600162210723s9999||||xx |||||||||||||| ||und||  aNULL  a23844  a591.5BPHI  aPhilipson, Johan 0aEcological Energetics  a-  a-bEdward Arnold  a57  a0  a-