Citazione Stile APA (7a Edizione)

Ingram, J. C. (1970). International economic problem (2nd ed.). John Wiley.

Citazione stile Chigago Style (17a edizione)

Ingram, James C. International Economic Problem. 2nd ed. NewYork: John Wiley, 1970.

Citatione MLA (9a ed.)

Ingram, James C. International Economic Problem. 2nd ed. John Wiley, 1970.