Ingram, J. C. (1970). International economic problem (2nd ed.). John Wiley.
Tohutoru Kātū Chicago (17th ed.)Ingram, James C. International Economic Problem. 2nd ed. NewYork: John Wiley, 1970.
Tohutoro MLA (9th ed.)Ingram, James C. International Economic Problem. 2nd ed. John Wiley, 1970.
Kia tūpato: Kāore pea ēnei kupu hautoa i te ōrite pū 100%.