Power, J. H. (1970). Protection and trade preferences. Institute of Economic Development and Research, School of Economics, University of the Philippines.
Dyfyniad Arddull ChicagoPower, John H. Protection and Trade Preferences. [Quezon City]: Institute of Economic Development and Research, School of Economics, University of the Philippines, 1970.
Dyfyniad MLAPower, John H. Protection and Trade Preferences. Institute of Economic Development and Research, School of Economics, University of the Philippines, 1970.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.