Cita APA

Gregory, I., & Ell, P. S. (2007). Historical GIS: Technologies, methodologies, and scholarship. Cambridge University Press.

Chicago Edition Citation

Gregory, Ian, i Paul S. Ell. Historical GIS: Technologies, Methodologies, and Scholarship. Cambridge ; New York: Cambridge University Press, 2007.

Cita MLA

Gregory, Ian, i Paul S. Ell. Historical GIS: Technologies, Methodologies, and Scholarship. Cambridge University Press, 2007.