GUPTA V P. (1997). GUIDE TO EXPORT 1997-98 (3RD.). UNIVERSAL BOOKS.
Chicago Style aipamenaGUPTA V P. GUIDE TO EXPORT 1997-98. 3RD. DELHI: UNIVERSAL BOOKS, 1997.
MLA aipamenaGUPTA V P. GUIDE TO EXPORT 1997-98. 3RD. UNIVERSAL BOOKS, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.