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