Poshtenskite pechati i kleĭma na Sofii͡a︡ prez XIX vek
By: Panaĭot Kurdalanov, Ĭordan Kozarev.
Contributors: Kozarev, Ĭordan.
Edition: Vedomstveno izd.
Publisher: Sŭi͡u︡z na Bŭlgarskite filatelisti, Nauchno-informat͡s︡ionen t͡s︡entŭr po filatelii͡a︡
Published: 1986
Place of publication: [Sofii͡a︡]
Language: bul
Number of pages: 39
Subjects: Postmarks -- Bulgaria -- Sofia -- History -- 19th century.
Notes: Bibliography: p. [40].
Summary in French and German.