Cannabis Ruderalis October 12, 2016 thcscience_admin Bulgaria portal Pages in category "Referendums in Bulgaria" The following 6 pages are in this category, out of 6 total. This list may not reflect recent changes. 0–9 1922 Bulgarian war criminal prosecution referendum 1946 Bulgarian republic referendum 1971 Bulgarian constitutional referendum 2013 Bulgarian nuclear power referendum 2015 Bulgarian electoral code referendum 2016 Bulgarian referendum