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Transportation facilities for developing wood-using industries in Norteastern Minnesota
Carpenter, Eugene M., (1964)
Costs and distortions of U.S. regulations policy in intercoastal lumber shipping
Boyd, Roy, (1983)
Metsätöistä Yhdysvaltain länsirannikolla
Heiskanen, Veijo, (1952)
An economic model of direct and indirect effects of tax reform on agriculture
Boyd, Roy, (1988)
Government support of nonindustrial production : the case of private forests
Boyd, Roy, (1984)