@book{50659,
	author = {ALEXANDER, L. G.},
	title = {PRACTICE AND PROGRESS: AN INTEGRATED COURSE FOR PRE-INTERMEDIATE STUDENTS},
	publisher = {LONGMAN},
	year = {1971},
	address = {LONDON},
	edition = {1 ed.},
	url = {https://www.santoandre.sp.gov.br/pesquisa/con_detalhe.asp?ID=63456&vHistoryNovo=sim}
}