00317nam a2200121 a 450000500170000002000150001708200160003210000190004811000410006724500330010826000320014130000220017320251203110059.0  a1566702747  a639.31bEGN  aEgna,Hillary S  aEgna, Hillary S. and Boyd, Claude E.  aDynamics of Pond Aquaculture  aBoca RatonbCRC Pressc1997  a437p.c23 cm H.B.