Vishnoo Bhagwan & Vidya Bhushan. (1987). World constitutions. Sterling.
Chicago Style aipamenaVishnoo Bhagwan and Vidya Bhushan. World Constitutions. New Delhi: Sterling, 1987.
MLA aipamenaVishnoo Bhagwan and Vidya Bhushan. World Constitutions. Sterling, 1987.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.