Martin, D. (1996). Geographic information systems: Socioeconomic applications (2nd ed.). Routledge.
Chicago-čujuhus (17. p.)Martin, David. Geographic Information Systems: Socioeconomic Applications. 2nd ed. New York: Routledge, 1996.
MLA-čujuhus (9. p.)Martin, David. Geographic Information Systems: Socioeconomic Applications. 2nd ed. Routledge, 1996.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.