APA aipamena

Anirudh. Presidential Government or Parliamentary Democracy. [s.n].

Chicago Style aipamena

Anirudh. Presidential Government or Parliamentary Democracy. [s.l]: [s.n].

MLA aipamena

Anirudh. Presidential Government or Parliamentary Democracy. [s.n].

Kontuz: berrikusi erreferentzia hauek erabili aurretik.