BARBOSA, Valdivânia Pereira. Geography in the study plan of itinerant schools: the concepts of environment and work as foundations of human formation. Geosaberes, Fortaleza, v. 9, n. 19, p. 1 -15, sep. 2018. ISSN 2178-0463. Available at: <http://geosaberes.ufc.br/geosaberes/article/view/677>. Date accessed: 06 dec. 2022. doi: https://doi.org/10.26895/geosaberes.v9i19.677.