Không rõ. (2000). Electronic Commerce A Managerial Perspective. NOTNXB.
Chicago Style aipamenaKhông rõ. Electronic Commerce A Managerial Perspective. NOTNXB, 2000.
MLA aipamenaKhông rõ. Electronic Commerce A Managerial Perspective. NOTNXB, 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.