00538nam a22001457a 4500003000400000005001700004008004100021040001400062100002300076245011500099260000900214300002700223500011500250504002700365OSt20171010095528.0121004t        xxu||||| |||| 00| 0 eng d  aMMSUcULS  aBacnis, Leizel V.   aPesticide residue analysis in selected vegetable growing areas of Santa Catalina, Ilocos SurcLeizel V. Bacnis  c2008  axi, 40 leaves c28 cm.  aThesis (BS Environmental Science) -- Mariano Marcos State University-College of Arts and Sciences, Batac City   aBibliography: leaf 27