Author

David M. Helgren

11 books found

Cover of Holt World Geography Today

Holt World Geography Today

Robert J. Sager, David M. Helgren · First published 2007

Cover of Ga Ate Pp&c 2005 East

Ga Ate Pp&c 2005 East

David M. Helgren; Robert J. Sager; et al · First published 2005

Cover of Holt people, places, and change

Holt people, places, and change

David M. Helgren · First published 2005

Cover of World Geography Today

World Geography Today

Robert J. Sager, David M. Helgren · First published 2002 · Latest edition 2005

Cover of Holt World Geography Today Texas

Holt World Geography Today Texas

David M. Helgren · First published 2003

Cover of People, Places and Change

People, Places and Change

David M. Helgren · First published 2001

Cover of Resources

Resources

David M. Helgren · First published 1996

Cover of World Geography Today

World Geography Today

David M. Helgren, Robert J. Sager · First published 1985 · Latest edition 1995

Cover of Impacts of technology

Impacts of technology

David M. Helgren · First published 1993

Cover of Populations

Populations

David M. Helgren · First published 1993

Cover of Rivers of diamonds

Rivers of diamonds

David M. Helgren · First published 1979