Highsmith, R. M. (1963). Geography of Commodity production (2nd ed.). Oregon State univ..
Chicagoスタイル(17版)引用形式Highsmith, Richard M. Geography of Commodity Production. 2nd ed. Oregon: Oregon State univ., 1963.
MLA(9版)引用形式Highsmith, Richard M. Geography of Commodity Production. 2nd ed. Oregon State univ., 1963.
警告: この引用は必ずしも正確ではありません.