APA (7th ed.) Citation

LEONARD, J. W. (1068). Coal preparation - Joseph W. Leonard, David R. Mitchell. American Institute of mining.

Chicago Style (17th ed.) Citation

LEONARD, Joseph W. Coal Preparation - Joseph W. Leonard, David R. Mitchell. American Institute of mining, 1068.

MLA (8th ed.) Citation

LEONARD, Joseph W. Coal Preparation - Joseph W. Leonard, David R. Mitchell. American Institute of mining, 1068.

Warning: These citations may not always be 100% accurate.