Great plains The human factor in great plains life. Great Plains Journal v.6 #1 Fall 1966 p,19-31 Plains today, depopulation poses its problems. Journal of the West v.6 #1 Ja 1967 p.6-lo Image of flatness on plains. Ibid. p.11-26 Steamboating on Missouri: Its significance on Northern Great Plains. Journal of the West v.6 #1 Ja 1967 p 53-67
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