I 69.9:1059
|
Blowing versus exhausting face ventilation for respirable dust control on continuous mining sections / |
1 |
I 69.9:1060
|
Compilation of judicial decisions which have an impact on coal mine inspections / |
1 |
I 69.9:1061
|
Quantitating respirable dust levels generated during longwall mining operations / |
1 |
I 69.9:1063
|
Mine rescue study report on Australian mine rescue systems and a discussion of American systems with recommendations / |
1 |
I 69.9:1064
|
Comparison of respirable dust concentrations measured with personal gravimetric sampling instruments operated on-section and portal-to-portal / |
1 |
I 69.9:1065
|
Coal mine injury and employment experience by occupation, 1972-75 / |
1 |
I 69.9:1066
|
Mine ventilation digital simulation and analysis capabilities at MESA's Denver, Technical Support Center / |
1 |
I 69.9:1067
|
Measurements of some of the factors which influence the radon daughter health hazard / |
1 |
I 69.9:1068
|
Computerized slope stability analysis of refuse piles and impoundments by the simplified Bishop method. |
1 |
I 69.9:1069
|
The use of a handheld programmable calculator to determine the explosibility of mine atmospheres and gas mixtures / |
1 |
I 69.9:1070
|
Fan curve preparation using programmable pocket calculators / |
1 |
I 69.9:1073
|
Standard calibration and maintenance procedures for wet test meters and coal mine respirable dust samplers / |
1 |
I-70
|
Photogeologic map of the Carlisle-5 quadrangle, Wayne and San Juan Counties, Utah / |
1 |
I 70.10:F 77 j
|
Fort Johnson, Amsterdam, New York : a historic structure report , 1974-1975 / |
1 |
I 70.10:T 34
|
Historic structure report, historic data section, CCC structure, Peaceful Valley Ranch, Maltese Cross Cabin, Elkhorn Ranch, Theodore Roosevelt National Park, North Dakota / |
1 |
I 70.11/2:Ar 2/2
|
The Curation and management of archeological collections : a pilot study. |
1 |
I 70.11/3:C 82
|
Cost-cutting strategies for the Park and Recreation Agency / |
1 |
I 70.11:Ar 2
|
The archeological survey : methods and uses / |
1 |
I 70.11:H 88
|
Human bones and archeology / |
1 |
I 70.11:Sch 6
|
Scholars as contractors : report of a workshop on the contract archeology process / |
1 |