Albert, R. H. (1976). Sales and marketing management. S.M.M.
Chicago Style aipamenaAlbert, Robert H. Sales and Marketing Management. New York: S.M.M, 1976.
MLA aipamenaAlbert, Robert H. Sales and Marketing Management. S.M.M, 1976.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.