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Google圖書搜尋
Natural Aggregates of the Conterminous United States
William H. Langer
Geological Survey (U.S.)
出版
U.S. Government Printing Office
, 1988
URL
http://books.google.com.hk/books?id=1qCfmNfg7MEC&hl=&source=gbs_api
EBook
FULL_PUBLIC_DOMAIN
註釋
The geologic occurrence of potential sources of crushed stone and sand and gravel for use as natural aggregate and a summary of the natural aggregate industry.
