Citazione Stile APA (7a Edizione)

Highsmith, R. M. (1963). Geography of Commodity production (2nd ed.). Oregon State univ..

Citazione stile Chigago Style (17a edizione)

Highsmith, Richard M. Geography of Commodity Production. 2nd ed. Oregon: Oregon State univ., 1963.

Citatione MLA (9a ed.)

Highsmith, Richard M. Geography of Commodity Production. 2nd ed. Oregon State univ., 1963.