Cohen, B. J. (1969). Balance of payments policy (1st Penguin ed.). Penguin Books.
Chicago Style (17th ed.) ZitazioaCohen, Benjamin J. Balance of Payments Policy. 1st Penguin ed. Harmondsworth: Penguin Books, 1969.
MLA (9th ed.) ZitazioaCohen, Benjamin J. Balance of Payments Policy. 1st Penguin ed. Penguin Books, 1969.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.