Cita APA (7th ed.)

SpringerLink (Online service) & Xiao, N. (2012). Geographic information science: 7th International Conference, GIScience 2012, Columbus, OH, USA, September 18-21, 2012. Proceedings. Imprint: Springer.

Cita Chicago (17th ed.)

SpringerLink (Online service) i Ningchuan Xiao. Geographic Information Science: 7th International Conference, GIScience 2012, Columbus, OH, USA, September 18-21, 2012. Proceedings. Berlin, Heidelberg: Imprint: Springer, 2012.

Cita MLA (8th ed.)

SpringerLink (Online service) i Ningchuan Xiao. Geographic Information Science: 7th International Conference, GIScience 2012, Columbus, OH, USA, September 18-21, 2012. Proceedings. Imprint: Springer, 2012.