Pearson EText GeosystemsRobert W. Christopherson, Ginger E. Birkeland · First published 2017Open the Tome
Geosystems CoreRobert W. Christopherson, Stephen Cunha, Charles E. Thomsen, Ginger Birkeland · First published 2016Open the Tome
Geosystems CoreRobert Christopherson; Stephen Cunha; Charles E. Thomsen; Ginger H. Birkeland · First published 2016Open the Tome
Mastering Geography with Pearson eText -- Standalone Access Card -- for Geosystems CoreRobert W. Christopherson, Stephen Cunha, Charles E. Thomsen, Ginger Birkeland · First published 2016Open the Tome
Modified Mastering Geography with Pearson eText -- Standalone Access Card -- for Geosystems CoreRobert W. Christopherson, Stephen Cunha, Charles E. Thomsen, Ginger Birkeland · First published 2016Open the Tome
