Blyth, F.G.H. . A Geology for Engineers / Textual Documents F.G.H. Blyth and M.H. de Freitas. - 7th ed. / - London : English Language Book Society , 1984. - x,325p. : ill ; 24cm . Index ISBN: 0-7131-2910-7 Subjects--Index Terms: Geology Geology-Engineering G-Geology T/G-Geology Dewey Class. No.: 550.62 / Bl 629 Ge