Analyses of samples of delivered coal collected from July 1, 1915 to January 1, 1922 : with a chapter on The tidewater pool classifications /
| Hlavní autor: |
Snyder, Ned. H.
(
Autor )
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| Korporace: | |
| Typ dokumentu: | Kniha |
| Jazyk: |
angličtina |
| Vydavatel: |
Washington :
Government Printing Office,
1923.
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| Edice: |
Bulletin ;
230 |
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