 | An analysis of labor requirement and market price differences for tied and untied flue-cured tobacco | (1) |
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 | An analysis of labor requirement and market price differences for tied and untied flue-cured tobacco / Robert H. Nicholson, Garnett L. Bradford Joe S. Chappell. Nicholson, Robert H. cn Raleigh, N.C. : Dept. of Economics, North Carolina State University at Raleigh, 1969. | |
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