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- Indians of North America --Education --South Dakota1
- Irrigation --Colorado 1
- Irrigation canals and flumes--Arizona--Salt River Valley--Pictorial works1
- Irrigation farming --West (U.S.)1
- Land use --Kansas1
- Miners --Labor unions --Nevada1
- Oglala Indians --Education1
- Press, Labor1
- Pueblos--New Mexico--Pictorial works1
- Ranching --Alaska1
- Reindeer farming --Alaska1
- Rhubarb1
- Sewing machines1
- Sewing-machine industry1
- Silver mines and mining --Nevada --Nye County1
- Strawberry industry--Alaska1
- Working class--Songs and music1
- Worlds fairs --New York (State) --Buffalo --19011
