@book{19539,
	author = {BERTALANFFY, LUDWIG VON and GUIMARAES, FRANCISCO M.},
	title = {TEORIA GERAL DOS SISTEMAS},
	publisher = {VOZES},
	year = {1975},
	address = {PETROPOLIS); INL (RIO DE JANEIRO},
	edition = {2 ed.},
	note = {BIBLIOGRAFIA. NOTAS DE RODAPE.},
	url = {https://www.santoandre.sp.gov.br/pesquisa/con_detalhe.asp?ID=25514&vHistoryNovo=sim}
}