Leitch, Duncan. Geology in the life of man : a brief history of its influence on thought and the development of modern civilization / Duncan Leitch. - London : Watts, 1948. - x, 118 p. ; ill. ; 17 cm. - The thinker's library, no. 108 . Includes index. 319 319 Subjects--Topical Terms: Geology. Dewey Class. No.: 550 / L536g