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Publisher
- The Administration30
- The Survey24
- Bureau of Public Roads17
- The Bureau13
- U.S. Geological Survey8
- Dept. of Agriculture, Bureau of Public Roads5
- Bureau of Public Roads, (U.S. Geological Survey)3
- Public Roads Administration2
- Bureau of Public Roads : For sale by the Supt. of Docs., U.S. G.P.O.1
- Bureau of Public Roads : Printed by the U.S. Geological Survey1
- Bureau of Public Roads, Printed by the U.S. Geological Survey)1
- U.S. Bureau of Public Roads1
