Exploring Our WorldRalph Sandlin Yohe, Gilbert A. Cahill, Herbert H. Gross, Charles F. Gritzner · First published 1980Open the Tome
Exploring World RegionsHerbert H. Gross, Dwight W. Follett, Robert E. Gabler, William L. Burton, Wedel D. Nilsen · First published 1975Open the Tome
Exploring the Old WorldO Stuart Hamer, Dwight W Follett, Herbert H Gross, Ralph Sandlin Yohe, Ben F. Ahlschwede, Orlando W Stephenson · First published 1964Open the Tome
Exploring American Neighbors in Latin America and CandaWilliam Henry Gray, Ralph Hancock, Herbert H. Gross, Dwight H. Hamilton, Evalyn A. Meyers · First published 1963Open the Tome
Exploring our CountryO. Stuart Hamer, Dwight W. Follett, Ben F. Ahlscwede, Herbert H. Gross · First published 1962Open the Tome
Exploring American Neighbors in Latin America and Canada (New Unified Social Studies)William Henry Gray, Hancock, Ralph, Herbert H. Gross · First published 1959Open the Tome
Our southern neighborsJacob Gibble Meyer, William Henry Gray, Herbert H. Gross · First published 1942Open the Tome
