Singh, V. International Business Environment & Foreign Exchange Economics (I.). New Age International.
Chicago Style aipamenaSingh, V.P. International Business Environment & Foreign Exchange Economics. I. 2011: New Age International.
MLA aipamenaSingh, V.P. International Business Environment & Foreign Exchange Economics. I. New Age International.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.