Smith, B. J. Environmental science / B. J. Smith, G. M. Phillips and M. E. Sweeney - Essex : Longman, c1996. - xii,502 p. : ill. ; 22 cm. - Longman technician series . ISBN: 0582416205 LCCN: Subjects--Topical Terms: Human ecologyEnvironmental science LC Class. No.: GE115 / .B59 1996 Dewey Class. No.: 333.7 / S643e