Extent: | ill., maps 26 cm |
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Series: | Mineral technology and output per man studies ; report no. E-9 |
Type of publication: | Book / Working Paper |
Language: | English |
Notes: | "August 1939." Includes bibliographical references |
Source: | ECONIS - Online Catalogue of the ZBW |
Persistent link: https://www.econbiz.de/10003085757