Global Geodetic Observing System

MLA

Plag, Hans-Peter; Pearlman, Michael, Michael Pearlman, and Hans-Peter Plag. Global Geodetic Observing System. Springer Berlin Heidelberg, 2009.

APA

Plag, M., Pearlman, M., & Plag, H. (2009). Global Geodetic Observing System. Springer Berlin Heidelberg.

Chicago

Plag, Hans-Peter; Pearlman, Michael, Michael Pearlman, and Hans-Peter Plag. Global Geodetic Observing System. : Springer Berlin Heidelberg, 2009.