One hundred and twenty-nine products prepared by 15 collieries in Natal were petrographically analyzed. The collieries producing the coal can conveniently be divided into six areas, and the coals belonging to area have similar petrographic properties.
Reference:
Moodie, B. 1975. The maceral composition of products prepared by the collieries in Natal. http://hdl.handle.net/10204/12923 .
Moodie, B. (1975). The maceral composition of products prepared by the collieries in Natal Retrieved from http://hdl.handle.net/10204/12923
Moodie, B The maceral composition of products prepared by the collieries in Natal. 1975. http://hdl.handle.net/10204/12923
Moodie B. The maceral composition of products prepared by the collieries in Natal. 1975 [cited yyyy month dd]. Available from: http://hdl.handle.net/10204/12923