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Diagrammatic guide signs for use on controlled access highways :
final report, v.1. Recommendations for diagrammatic guide signs,
by Truman M. Mast and Gretchen S. Kolsrud, prepared by...and BioTechnology.



Published: Dec.1972.
Physical Description: For further bibliographic information see card catalog in the Transportation Library.
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Item Link Original Source
Limited (search only) Northwestern University
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