APA Баримт

Bulgarian academy of sciences Scientific information centre. (1983). 1300th anniversay of the foundation of the bulgarian state: Thematic collection.

Чикаго маягийн жагсаалт

Bulgarian academy of sciences Scientific information centre. 1300th Anniversay of the Foundation of the Bulgarian State: Thematic Collection. Sofia, 1983.

MLA ишлэл

Bulgarian academy of sciences Scientific information centre. 1300th Anniversay of the Foundation of the Bulgarian State: Thematic Collection. 1983.