• 12 Map Library (Robinson)

• 21 Maps, Atlases

• 7 Field crops
• 2 Railroads
• 1 Administrative and political divisions
• 1 Alfalfa
• 1 Barley
• 1 Cables, Submarine
• 1 Cattle
• 1 Corn
• 1 Dairy cattle
• 1 Electric power
• 1 Flax
• 1 Goats
• 1 Horses
• 1 Mineral industries
• 1 Mines and mineral resources
• 1 Oats
• 1 Precipitation (Meteorology)
• 1 Precipitation normals
• 1 Rain and rainfall
• 1 Rye
• 1 Sheep
• 1 Swine
• 1 Telecommunication
• 1 Telecommunication lines
• 1 Telegraph cables

• 8 United States. Office of Strategic Services. Reproduction Branch
• 2 United States. Board of Economic Warfare
• 1 United States. Department of State. Division of Map Intelligence and Cartography

• 21 English

• 1 Río de la Plata (Argentina and Uruguay)

Limit year range