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Fact finding report, Texas, June 1960
(1960)
Die alten Leute in Nordrhein-Westfalen am 6. Juni 1961
(1966)
One approach to the economic and social problems of Northern New Mexico
Knowlton, Clark S., (1964)
Commercial farming in the United States
Skrabanek, R. L., (1954)
Characteristics and changes in the Texas farm population
Skrabanek, R. L., (1955)