Bulgarien. (1987). Constitution of the People's Republic of Bulgaria: Adopted by a National Referendum on May 16, 1971. Sofia Press.
Chicago-Zitierstil (17. Ausg.)Bulgarien. Constitution of the People's Republic of Bulgaria: Adopted by a National Referendum on May 16, 1971. Sofia: Sofia Press, 1987.
MLA-Zitierstil (9. Ausg.)Bulgarien. Constitution of the People's Republic of Bulgaria: Adopted by a National Referendum on May 16, 1971. Sofia Press, 1987.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.