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Subject
- 31 Frost
- 31 Frost action
- 31 Frost heave
- 31 Frost heaving
- 25 Soil mechanics
- 24 Airfields
- 23 Runways
- 18 Frozen ground
- 18 Pavement bases
- 18 Pavements
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Date issued
- 15 1950 - 1960
- 22 1945 - 1949
Has File(s)
- 37 true