In the present investigation samples of approximately cobble sized coal from five typical collieries in the major coal fields were taken.
Reference:
Van Eck, B. & Savage, W. 1951. The effect of variations in the moisture content on the float and sink analysis of large coal. http://hdl.handle.net/10204/13072 .
Van Eck, B., & Savage, W. (1951). The effect of variations in the moisture content on the float and sink analysis of large coal Retrieved from http://hdl.handle.net/10204/13072
Van Eck, B, and WHD Savage The effect of variations in the moisture content on the float and sink analysis of large coal. 1951. http://hdl.handle.net/10204/13072
Van Eck B, Savage W. The effect of variations in the moisture content on the float and sink analysis of large coal. 1951 [cited yyyy month dd]. Available from: http://hdl.handle.net/10204/13072