Blackboard -- Access Card -- for World Regional GeographyDouglas L. Johnson, Viola Haarmann, Merrill L. Johnson · First published 2014Open the Tome
MasteringGeography with Pearson EText -- Standalone Access Card -- for World Regional GeographyDouglas L. Johnson, Viola Haarmann, Merrill L. Johnson · First published 2014Open the Tome
Modified MasteringGeography with Pearson EText -- Standalone Access Card -- for World Regional GeographyDouglas L. Johnson, Viola Haarmann, Merrill L. Johnson · First published 2014Open the Tome
World Regional GeographyDouglas L. Johnson, Viola Haarmann, Merrill L. Johnson · First published 2014Open the Tome
World regional geographyDavid L. Clawson, Christopher A. Airriess, Merrill L. Johnson, Douglas L. Johnson, Viola F Haarmann, Robert L. Argenbright, Samuel A Aryeetey-Attoh, Bella Bychkova Jordan, William C. Rowe, Jack F. Williams · First published 2006Open the Tome
Cultural encounters with the environmentAlexander B. Murphy, Viola Haarmann · First published 2000Open the Tome
Naturpotential und Grenzen der Landnutzung im Südsahel des südöstlichen Jebel-Marra-Vorlandes (Darfur/Republik Sudan)Viola Haarmann · First published 1986Open the Tome
Beiträge zur Morphodynamik im Relief des Jebel-Marra-Massivs und in seinem Vorland (Darfur/Republik Sudan), mit drei Beiträgen aus den westlichen NilbereichenHorst Mensching, Viola Haarmann · First published 1984Open the Tome
Problems of the management of irrigated land in areas of traditional and modern cultivationHorst Mensching, Viola Haarmann · First published 1982Open the Tome
