Bell, Fred G.. Environmental Geology: Principles and Practice / Textual Documents Fred G. Bell. - 1st ed. / - London : Blackwell Publishers Ltd , 1998. - 594p. : ill ; 22cm . Index ISBN: 0-86542-875-1 Subjects--Index Terms: Environmental Geology Deptt.-Geology Dewey Class. No.: 551 / Be 413 Fr