4

Early North American Settlers

4

Maddy's Mississippi Diary

4

Maddy's Michigan Diary

4

Maddy's New Jersey Diary

4

Maddy's Nevada Diary

3

Amerigo Vespucci

4

Maddy's California Diary

4

Maddy's Rhode Island Diary

4

The American Revolution

3

Straits of the World

4

Maddy's Missouri Diary

4

Maddy's Illinois Diary

4

History of the United States

4

Maddy's South Carolina Diary

4

An Introduction to the History of the United States of America

4

Maddy's Arkansas Diary

4

Maddy's Vermont Diary

4

Maddy's New Mexico Diary

3

Drainage Basins of the World

4

Chip's Tips on Mexico

4

Maddy's Hawai'i Diary

4

Maddy's West Virginia Diary

4

Maddy's Maine Diary

4

Maddy's Virginia Diary

4

Maddy's Utah Diary

4

Maddy's Indiana Diary

4

Maddy's New Hampshire Diary

4

Maddy's Alaska Diary

4

Maddy's Delaware Diary

4

Maddy's Ohio Diary