@book{4136,
	author = {GISCHKOW, JOAO A. VIDAL},
	title = {MATEMATICA COMERCIAL APLICADA},
	publisher = {LEP},
	year = {1962},
	address = {SAO PAULO},
	edition = {3 ed.},
	url = {https://www.santoandre.sp.gov.br/pesquisa/con_detalhe.asp?ID=7474&vHistoryNovo=sim}
}