REMOVE

1. World Atlas
2. School Atlas
3. North America

WHAT

1. Atlas Map (3)
2. Agriculture (1)
3. Climate (1)

WHERE

1. Central America (2)
2. Canada (1)
3. Mexico (1)
4. United States (1)

WHO

1. General Drafting Co., Inc … (2)
2. McGraw-Hill Book Company (2)
3. Western Publishing Compan … (2)
4. C.G. Luderitz (1)
5. Ruhle von Lilienstern, Au … (1)

WHEN

1. 1968 (2)
2. 1824 (1)
3. 1825 (1)