Power, J. H. (1970). Protection and trade preferences. Institute of Economic Development and Research, School of Economics, University of the Philippines.
Chicago-referens (17:e uppl.)Power, John H. Protection and Trade Preferences. [Quezon City]: Institute of Economic Development and Research, School of Economics, University of the Philippines, 1970.
MLA-referens (9:e uppl.)Power, John H. Protection and Trade Preferences. Institute of Economic Development and Research, School of Economics, University of the Philippines, 1970.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.