Istoriya na Bŭlgariya
Subtitle: uchebnik za XI klas na srednite politekhnicheski uchilishta
By: Al. Burmov, D. Kosev, Khr. Khristov.
Contributors: Kosev, D.; Khristov, Khr.
Publisher: Narodna prosveta
Published: 1960
Place of publication: Sofiya
Language: bul
Notes: With 12 maps in end pocket.