Publish Year Decade: 1930 - 1939 / Catalog Issue Year Decade: 1930 - 1939 / Sudoc Stem: A 22.6/a - Blacklight Search Results

Start Over Publish Year Decade 1930 - 1939 Catalog Issue Year Decade 1930 - 1939 Sudoc Stem A 22.6/a

1. Soils. Reports on subgrade soil studies.

Corporate/Agency Authors:: Public Roads Bureau and Agriculture Department
Publisher:: Public Roads Bureau
Date:: [1931.]
SuDoc number:: A 22.6/a:So 34/4