Martin, David Geographic Information Systems : socioeconomic applications / David Martin - 2nd ed. - London : Routledge, c1996. - xiv, 209 p. ; ill. ; 23 cm. ISBN: 0415125715 LCCN: Subjects--Topical Terms: Geographic information systems. LC Class. No.: G70.2 / .M364 1996 Dewey Class. No.: 910.285574 / M379g