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Primary Crushing
Alva Britt Hooker
Carlton Ernest Brown
Earl Carlton Lane
Ellis S. Hertzog
F. G. Miller
George Stanley Scott
George William Jones
Harold Putnam Greenwald
J. B. Littlefield
Lee Clyde Ilsley
Ludwig Schmidt
Mark Sheppard
Oliver Caldwell Ralston
R. E. Heithecker
W. M. Deaton
Wilbert James Huff
R. G. O'Meara
United States. Bureau of Mines
C. N. Witherow
Clarence John Wilhelm
Earl Jeffries Coggeshall
Ernest J. Gleim
Ernest L. Garton
Harry Clarence Fowler
Helmuth Herman Schrenk
Henry C. Howarth
James R. Cudworth
Robert E. Kennedy
W. B. Berwald
Glen Dale Coe
Harry Mac Cooper
Hilary Breton Brunot
其他書名
Progress Report No. 1
出版
U.S. Department of the Interior, Bureau of Mines
, 1938
URL
http://books.google.com.hk/books?id=iaE9jwEACAAJ&hl=&source=gbs_api