scholarly journals Selective flotation of fossil resin from western coal. Quarterly report, August 31, 1991--November 30, 1991

1992 ◽  
Author(s):  
G.F. Jensen ◽  
J.D. Miller
Author(s):  
Mitsuo MAMIYA ◽  
Toyohisa FUJITA ◽  
Yuezhou WEI

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