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A New Penetration Needle for Use in Testing Bituminous Materials


Author:
Reeve, Charles S. and Pritchard, Fred P.
Source:
USDA
Year:
1916
Format:
p. 1121-1126. plates.
Language:
English
Collection:
USDA publications
Permanent URL:
http://handle.nal.usda.gov/10113/IND43965704