Sobral, M. (1971). The beverages industry in W. Erope. Europe.
Chicago Style aipamenaSobral, M. The Beverages Industry in W. Erope. Europe, 1971.
MLA aipamenaSobral, M. The Beverages Industry in W. Erope. Europe, 1971.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.