Coal-washing investigations :
methods and tests /
by H.F. Yancey and Thomas Fraser.
APA Citation
Yancey, H. F. (Harry Fagan)., Fraser, T., United States. Bureau of Mines. (1929). Coal-washing investigations: methods and tests. Washington: Dept. of Commerce, Bureau of Mines .
MLA Citation
Yancey, H. F. (Harry Fagan), 1890-1970, Thomas Fraser, and United States. Bureau of Mines. Coal-washing Investigations: Methods And Tests. Washington: Dept. of Commerce, Bureau of Mines , 1929.
Warning: These citations may not always be complete (especially for serials).