1. Bŭlgarii︠a︡ geografski atlas / nauchen redaktor, Ilii︠a︡ Kopralev ; avtorski kolektiv, Aleksandra Ravnachka ... [et. al.] ; kartografii︠a︡ i dizaĭn na kartite I︠U︡lii︠a︡... Author: Tangra TanNakRa obshtobŭlgarska fondat︠s︡ii︠a︡ Format: Map Language: Bulgarian Published: 2010
2. Bulgaria [cartographic material] Author: United States. Central Intelligence Agency Format: Map Language: English Published: 1988]
3. Bulgaria [cartographic material] Author: United States. Central Intelligence Agency Format: Map Language: English Published: 1983]
4. Bulgaria 1:50,000 Author: United States. Army Map Service, issuing body, cartographer Format: Map Language: English Published: [1959]-
5. 1:40,000 Bulgaria / Voenno-kartograficheski institut ; reproduced by 524 Pal. Fd. Survey Coy., R.E ., 1944 Author: Voenno-kartograficheski institut (Bulgaria), cartographer Format: Map Language: English Published: 1944
6. Bulgaria 1:100,000 / copmiled and drawn by O.S Author: Great Britain. War Office. General Staff. Geographical Section, cartographer, issuing body Format: Map Language: English Published: 1944
7. Bulgaria 1:250,000 / War Office Author: Great Britain. War Office. General Staff. Geographical Section, cartographer, issuing body Format: Map Language: English Published: 1943-1944
8. Bulgaria 1:50,000 Author: Great Britain. War Office, issuing body Format: Map Language: English Published: 1944
9. Bulgarien 1:100 000 [cartographic material] / hergestellt im Reichsamt für Landesaufnahme Author: Germany. Reichsamt für Landesaufnahme Format: Map Language: German Published: 1940-1944
10. [Topografska karta na Bŭlgariya 1:40,000] / Voenno-kartograficheski institut Author: Voenno-kartograficheski institut (Bulgaria), cartographer Format: Map Language: Bulgarian Published: [1905-1911]