APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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

Warning: These citations may not always be 100% accurate.