Year: | 1987 |
---|---|
Document Type: | USBI |
Issuing Agency: | The Bureau, |
SUDOC: | I 28.27:9141 |
Series: | Information circular ; |
Report Number: | 9141 |
Subjects: | Mine ventilation--Congresses |
Air quality--Measurement--Congresses | |
Diesel motor exhaust gas--Congresses | |
Diesel motor--Safety measures--Congresses | |
Link: | https://hdl.handle.net/2027/mdp.39015078462564 |