 | Applying economic principles in replacing or purchasing agricultural equipment | (1) |
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 | Applying economic principles in replacing or purchasing agricultural equipment / E.C. Pasour, Jr., T.E. Nichols, Jr., and G.L. Bradford. Pasour, E. C. cn Raleigh, N.C. : Dept. of Economics, North Carolina State University at Raleigh, 1969. | |
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