APA (7th ed.) Citation

Siegmund, A., Viehrig, K., & Volz, D. (2007). GISSchool: New didactical aspects of using GIS in geography education. Geography for society.

Chicago Style (17th ed.) Citation

Siegmund, Alexander, Kathrin Viehrig, and Daniel Volz. "GISSchool: New Didactical Aspects of Using GIS in Geography Education." Geography for Society 2007.

MLA (9th ed.) Citation

Siegmund, Alexander, et al. "GISSchool: New Didactical Aspects of Using GIS in Geography Education." Geography for Society, 2007.