Citazione Stile APA (7a Edizione)

Horn, P. V. (1945). International trade: Principles and practices. Prentice-Hall.

Citazione stile Chigago Style (17a edizione)

Horn, Paul Valentine. International Trade: Principles and Practices. New York: Prentice-Hall, 1945.

Citatione MLA (9a ed.)

Horn, Paul Valentine. International Trade: Principles and Practices. Prentice-Hall, 1945.