Area Handbook Series: Bulgaria. A Country Study Open PDF Document Details Document Type Technical Report Publication Date Jun 01, 1992 Accession Number ADA273007 Entities People Glenn E. Curtis Organizations Library of Congress Tags Communities of Interest Biomedical Energy and Power Technologies Ground and Sea Platforms Human Systems Space DTIC Thesaurus Topics Employment Ethnic Groups Geography Health Services International Law International Relations Materials Processing Medical Personnel Military Science National Politics National Security Personnel Management Political Systems Recreation Students Topography