APA (7th ed.) Citation

Bill, R., & Fritsch, D. (1991). Grundlagen der Geo-Informationssysteme. Wichmann.

Chicago Style (17th ed.) Citation

Bill, Ralf, and Dieter Fritsch. Grundlagen Der Geo-Informationssysteme. Karlsruhe: Wichmann, 1991.

MLA (9th ed.) Citation

Bill, Ralf, and Dieter Fritsch. Grundlagen Der Geo-Informationssysteme. Wichmann, 1991.

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