Bautista, R. M., & Tecson, G. d. R. (1975). Philippine import flows from Japan and the United States: Accuracy of trade recordings. Institute of Economic Development and Research, School of Economics, University of the Philippines.
Chicago-referens (17:e uppl.)Bautista, Romeo Marcelo, och Gwendolyn del Rosario Tecson. Philippine Import Flows from Japan and the United States: Accuracy of Trade Recordings. [Quezon City]: Institute of Economic Development and Research, School of Economics, University of the Philippines, 1975.
MLA-referens (9:e uppl.)Bautista, Romeo Marcelo, och Gwendolyn del Rosario Tecson. Philippine Import Flows from Japan and the United States: Accuracy of Trade Recordings. Institute of Economic Development and Research, School of Economics, University of the Philippines, 1975.