http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
1300th anniversary of the foundation of the Bulgarian state
One thousand three hundredth anniversary of the foundation of the Bulgarian state
Thirteen hundredth anniversary of the foundation of the Bulgarian state
Bulgarian Academy of Sciences Scientific Information Centre
bibliographers: V. Kehlibareva, M. Nikolova ; board of editors S. Gabrovska [i 5 pozostałych].
Bibliografia na stronach 348-352. Indeks.
Tekst w języku angielskim, francuskim i niemieckim.