Martin, D. (1991). Geographic Information Systems and Their Socioeconomic Applications. Routledge.
Citace podle Chicago (17th ed.)Martin, David. Geographic Information Systems and Their Socioeconomic Applications. London ; New York: Routledge, 1991.
Citace podle MLA (9th ed.)Martin, David. Geographic Information Systems and Their Socioeconomic Applications. Routledge, 1991.
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