Die Brennstoffe und ihre industrien. By
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Article
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1933
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Wiley (John Wiley & Sons)
⚖ 146 KB
Tlic authors in their preface tell us that the prominence which has been given t o tlie use of bituminous road eniulsions cluring the past eight or ten years is due to their intlependencc of watlicr conditions, tlir case with which the crnulsioils can lie applied, the succcss with ivhicli they h a w