Collection
Serial/Series Title
NACA Technical Memorandums
5
NACA Technical Notes
3
NACA Aircraft Circulars
2
Report of investigations (United States. Bureau of Mines)
2
United States Bureau of Mines Reports
2
Bulletin (Texas Agricultural Experiment Station)
1
Coal-Mine Fatalities
1
Farmers' bulletin (United States. Dept. of Agriculture)
1
Leaflet (United States. Department of Agriculture)
1
Country
States
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