bul: Източници

Information
has URI	http://lexvo.org/id/term/bul/%D0%98%D0%B7%D1%82%D0%BE%D1%87%D0%BD%D0%B8%D1%86%D0%B8

Meaning
means	(noun) a book to which you can refer for authoritative facts; "he contributed articles to the basic reference work on that topic" reference, reference book, book of facts, reference work