Power, J. H. (1970). Protection and trade preferences. Institute of Economic Development and Research, School of Economics, University of the Philippines.
Chicago-viite (17. p.)Power, John H. Protection and Trade Preferences. [Quezon City]: Institute of Economic Development and Research, School of Economics, University of the Philippines, 1970.
MLA-viite (9. p.)Power, John H. Protection and Trade Preferences. Institute of Economic Development and Research, School of Economics, University of the Philippines, 1970.
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