Corpuz, Paul John P.
Soil analysis in selected rice fields of Abbeg, Alcala, Cagayan / - 2012. - xii, 104 pages ; 28 cm.
CHEM 0079 / 2012 c.1
Soil analysis in selected rice fields of Abbeg, Alcala, Cagayan / - 2012. - xii, 104 pages ; 28 cm.
CHEM 0079 / 2012 c.1