APA (7th ed.) Citation

Glaβmeier, K., Soffel, H., & Negendank, J. F. (2009). Geomagnetic Field Variations. Springer Berlin Heidelberg.

Chicago Style (17th ed.) Citation

Glaβmeier, Karl-Heinz, Heinrich Soffel, and Jörg F.W Negendank. Geomagnetic Field Variations. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009.

MLA (8th ed.) Citation

Glaβmeier, Karl-Heinz, et al. Geomagnetic Field Variations. Springer Berlin Heidelberg, 2009.