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Subject
- 31 Frost
- 31 Frost action
- 25 Soil mechanics
- 23 Airfields
- 22 Runways
- 18 Pavement bases
- 18 Pavements
- 16 Frozen ground
- 16 Frozen soils
- 15 Frost penetration
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Date issued
- 12 1950 - 1959
- 19 1945 - 1949
Has File(s)
- 31 true