Velayudham, T. (2000). Foreign Trade: Theory & Practice. Wheeler.
Chicago Style aipamenaVelayudham, T.K. Foreign Trade: Theory & Practice. New Delhi: Wheeler, 2000.
MLA aipamenaVelayudham, T.K. Foreign Trade: Theory & Practice. Wheeler, 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.