Newman, P. (1965). The Theory of Exchange. New Jersey: Prentice - Hall.
Chicago Style aipamenaNewman, Peter. The Theory of Exchange. New Jersey: Prentice - Hall, 1965.
MLA aipamenaNewman, Peter. The Theory of Exchange. New Jersey: Prentice - Hall, 1965.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.