@book{59393,
	author = {Castelblanco Marcelo, Yanneth Beatriz and S�nchez de Escobar, Martha},
	title = {Qu�mic@ 1 /},
	publisher = {grupo Editorial Norma},
	year = {2004},
	address = {Bogot�},
	edition = {Primera edici�n},
	note = {Incluye �ndice y glosario}
}