Diamond, W. (1963). Distribution channels for industrial goods. Bureau of business research.
Chicago Style aipamenaDiamond, W.M. Distribution Channels for Industrial Goods. Ohio University: Bureau of business research, 1963.
MLA aipamenaDiamond, W.M. Distribution Channels for Industrial Goods. Bureau of business research, 1963.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.