@book{41217,
	author = {BARBOSA, RUY MADSEN},
	title = {ELEMENTOS DE LOGICA APLICADA AO ENSINO SECUNDARIO},
	publisher = {NOBEL},
	year = {1970},
	address = {SAO PAULO},
	edition = {3 ed.},
	note = {BIBLIOGRAFIA},
	url = {https://www.santoandre.sp.gov.br/pesquisa/con_detalhe.asp?ID=52599&vHistoryNovo=sim}
}