Carona, Rey Albert C.
Residual effect of inorganic fertilizer in the soil in selected barangays of Alcala, Cagayan / - 2006. - v, 33 pages ; 28 cm.
Envi 0017 / 2006 c.1
Residual effect of inorganic fertilizer in the soil in selected barangays of Alcala, Cagayan / - 2006. - v, 33 pages ; 28 cm.
Envi 0017 / 2006 c.1