Coal science; aspects of coal constitution, by D.W. van Krevelen and J. Schuyer. Krevelen, D. W. van (Dirk Willem) Schuyer, J. (Johannes), 1921- joint author. Coal. TN800 .K72 662.622* KRC Rev. ed. published in 1961 under title: Coal: typology, chemistry, physics, constitution. Includes bibliography. Amsterdam, Princeton [N.J.] Elsevier Pub. Co., 1957. 1957. 1957 Text 352 p. eng