@book{250161,
	author = {Rocha, R.A. da},
	title = {Retrieval of Trichostrongylus colubriformis infective larvae from grass contaminated in winter and in spring},
	url = {http://www.scielo.br/pdf/rbpv/v23n4/0103-846X-rbpv-23-04-463.pdf}
}