Raistrick, A. The nature and origin of coal and coal seams / A. Raistrick ; C. E. Marshall. - London : English Universities Press, c 1952. - xvi, 282 p. : ill. ; 22 cm. Includes index. Bibliography : p. (257-259). 340 340 Subjects--Topical Terms: Coal--Analysis. Dewey Class. No.: 553.2 / R136n