@book{8981,
	author = {Barra, Reisa B.,},
	title = {The perception of BSN - 4 students of Camarine sur polytechnic colleges on hepatitis b as a communicable disease /},
	publisher = {Camarines sur Polytechnic Colleges ;},
	year = {2007.},
	address = {Nabua, Camarines sur :}
}