000 00294nam a22001217a 4500
040 _cHS
082 _a577
100 _aCHRISTOPHER F.
245 _aPond fertilization ecological approach and practical appication
260 _aPhilippines
_bCHRISTOPHER F.
_c1998
300 _a124p;
942 _cEK
999 _c9992
_d9992