Ingco, M. D. (1991). Is rice becoming an inferior good?: Food demand in the Philippines. International Economics Department, World Bank.
Chicago-referens (17:e uppl.)Ingco, Merlinda D. Is Rice Becoming an Inferior Good?: Food Demand in the Philippines. [Washington D.C.]: International Economics Department, World Bank, 1991.
MLA-referens (9:e uppl.)Ingco, Merlinda D. Is Rice Becoming an Inferior Good?: Food Demand in the Philippines. International Economics Department, World Bank, 1991.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.