Verhofstadt, G. (1991). Burgermanifest. [S.l.]: [s.n.].
Chicago Style aipamenaVerhofstadt, Guy. Burgermanifest. [S.l.]: [s.n.], 1991.
MLA aipamenaVerhofstadt, Guy. Burgermanifest. [S.l.]: [s.n.], 1991.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.