Bolivar, J. D. (1987). A proposed syllabus and teaching material in economic geography for the secondary school. s.n.
Citação norma ChicagoBolivar, Juliana D. A Proposed Syllabus and Teaching Material in Economic Geography for the Secondary School. s.l: s.n, 1987.
Citação norma MLABolivar, Juliana D. A Proposed Syllabus and Teaching Material in Economic Geography for the Secondary School. s.n, 1987.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.