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Underground mine communications
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| Corporate Author: | |
|---|---|
| Format: | Government Document Book |
| Language: | English |
| Published: |
Pittsburgh, Pa. :
Dept. of the Interior, Bureau of Mines,
1977.
|
| Series: | Information circular (United States. Bureau of Mines) ;
8742-8745. |
| Physical Description: |
4 volumes : illustrations ; 26 cm. |
| Subjects: |
| Copy | CMU Storage Gov Pub | I 28.23:8745 | Available |
|---|---|---|---|
| Copy | CMU Storage Gov Pub | I 28.23:8744 | Available |
| Copy | CMU Storage Gov Pub | I 28.23:8743 | Available |
| Copy | CMU Storage Gov Pub | I 28.27:8742 | Available |