Martin, D. (1991). Geographic information systems and their socioeconomic applications. Routledge.
Chicago (17e ed.) BronvermeldingMartin, David. Geographic Information Systems and Their Socioeconomic Applications. London ; New York: Routledge, 1991.
MLA (9e ed.) BronvermeldingMartin, David. Geographic Information Systems and Their Socioeconomic Applications. Routledge, 1991.