ZIMMERMANN, E. W. (1951). World resources and industries: A functional appraisal of the availability of agricultural and industrial materials. Harper & Row.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)ZIMMERMANN, Erich W. World Resources and Industries: A Functional Appraisal of the Availability of Agricultural and Industrial Materials. New York: Harper & Row, 1951.
MLA -ийн эшлэл (9 дэх хэвлэлт)ZIMMERMANN, Erich W. World Resources and Industries: A Functional Appraisal of the Availability of Agricultural and Industrial Materials. Harper & Row, 1951.
Анхааруулга: Эдгээр ишлэлүүд үргэлж 100% үнэн зөв биш байж магадгүй.