World geography today /
[Robert J. Sager, David M. Helgren]
- Annotated teacher's ed.
- Austin : Holt, Rinehart, and Winston, c2000.
- 1 v. (various pagings) : ill. (some col.), col. maps ; 31 cm.
Rev. ed. of: World geography today / David M. Helgren, Robert J. Sager, Saul Isreal.