ZIMMERMANN, E. W. (1951). World resources and industries: A functional appraisal of the availability of agricultural and industrial materials. Harper & Row.
Citazione stile Chigago Style (17a edizione)ZIMMERMANN, Erich W. World Resources and Industries: A Functional Appraisal of the Availability of Agricultural and Industrial Materials. New York: Harper & Row, 1951.
Citatione MLA (9a ed.)ZIMMERMANN, Erich W. World Resources and Industries: A Functional Appraisal of the Availability of Agricultural and Industrial Materials. Harper & Row, 1951.
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