00507nam a22001457a 4500003000400000005001700004008004100021040001400062100002600076245012100102260000900223300002700232500007100259504003100330OSt20171010095251.0110906t        xxu||||| |||| 00| 0 eng d  aMMSUcULS  aEstira, Flordeliz R.   aLead bioaccumulation and its histological effects on the gills of get excel tilapia fingerlingscFlordeliz R. Estira  c2008  axv, 63 leaves c28 cm.  aThesis (MS Biology) -- Mariano Marcos State University, Laoag City  aBibliography: leaves 53-59