Venu, S. (1972). Effective protection in international trade. Vora & Co. publishers pvt. ltd.
Chicago Style aipamenaVenu, S. Effective Protection in International Trade. Bombay: Vora & Co. publishers pvt. ltd, 1972.
MLA aipamenaVenu, S. Effective Protection in International Trade. Vora & Co. publishers pvt. ltd, 1972.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.