Duncan, E. R. (1977). Dimensions of world food problems. IOWA State University Press.
Chicago Edition CitationDuncan, E R. Dimensions of World Food Problems. USA: IOWA State University Press, 1977.
Cita MLADuncan, E R. Dimensions of World Food Problems. IOWA State University Press, 1977.
Atenció: Aquestes cites poden no estar 100% correctes.