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1950
PRINCIPLES AND TECHNIQUES OF SOIL IDENTIFICATION

Highway Research Board Proceedings, Volume 29

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1949-10
USE OF AGRICULTURAL SOIL MAPS IN MAKING SOIL SURVEYS

Highway Research Board Bulletin, Issue 22, pp 108-116

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1949
LIGHTING OF SNOW AND ICE CONTROL EQUIPMENT

Highway Research Board Proceedings, Volume 28

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1947
A STUDY OF LATERITIC SOILS

Highway Research Board Proceedings, Volume 26

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Showing 751 - 754 of 754 records