Bolivar, J. D. (1987). A proposed syllabus and teaching material in economic geography for the secondary school. s.n.
Style de citation Chicago (17e éd.)Bolivar, Juliana D. A Proposed Syllabus and Teaching Material in Economic Geography for the Secondary School. s.l: s.n, 1987.
Style de citation MLA (9e éd.)Bolivar, Juliana D. A Proposed Syllabus and Teaching Material in Economic Geography for the Secondary School. s.n, 1987.
Attention : ces citations peuvent ne pas être correctes à 100%.