Highsmith, R. M. (1963). Geography of Commodity production (2nd ed.). Oregon State univ..
Citación estilo ChicagoHighsmith, Richard M. Geography of Commodity Production. 2nd ed. Oregon: Oregon State univ., 1963.
Cita MLAHighsmith, Richard M. Geography of Commodity Production. 2nd ed. Oregon State univ., 1963.
Warning: These citations may not always be 100% accurate.