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The economic environment of international business
Vernon, Raymond, (1972)
International economics
Kindleberger, Charles Poor, (1973)
Grubel, Herbert G., (1977)
A comment of Lerner's "extortion tax" plan
Shepherd, A. Ross, (1985)
Corrective taxes under monopoly
Shepherd, A. Ross, (1972)
Economic rent and the industry supply curve
Shepherd, A. Ross, (1970)