@book{8938,
	author = {Calumpit, Melinda G. },
	title = {Comparative effects of different fertilizers on the growth and yield performance of promising rice (Oryza sativa L.) varieties grown in two locations of region I},
	year = {2007},
	note = {Thesis (M.S. Agriculture-Crop Sci) -- Mariano Marcos State University, Laoag City}
}