Extent: | v, 145 p., 1 l 24 cm |
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Series: | |
Type of publication: | Book / Working Paper |
Type of publication (narrower categories): | Bibliografie |
Language: | English |
Notes: | At head of title: United States Department of the Interior. Harold L. Ickes, secretary. Bureau of Mines. John W. Finch, director "This compilation is a complete revision and expansion of Technical paper 493, which was published in 1931."--Foreword |
Source: | ECONIS - Online Catalogue of the ZBW |
Persistent link: https://www.econbiz.de/10001665214