APA (7e ed.) Bronvermelding

Martin, D. (1991). Geographic information systems and their socioeconomic applications. Routledge.

Chicago (17e ed.) Bronvermelding

Martin, David. Geographic Information Systems and Their Socioeconomic Applications. London ; New York: Routledge, 1991.

MLA (9e ed.) Bronvermelding

Martin, David. Geographic Information Systems and Their Socioeconomic Applications. Routledge, 1991.

Let op: Deze citaties zijn niet altijd 100% accuraat.