Enger, Eldon D. Enviromental Science : a study of interrelationship / by Eldon D. enger and Bradley F. Smith. - 7th edition. - - London : McGraw Hill, 2000 xix, 434 p. : ill., fig., tables
007230495 2 * * Enviromental projection engineering - * Enviromental projection engineering - * Smith, Branley F. *