Volzhka Bŭlgarii︠a︡ i Kazanskoto khanstvo
Subtitle: v geografskite karti na srednovekovieto i novoto vreme
By: Georgi Vladimirov
Publisher: Voenno izdatelstvo
Published: 2007
Place of publication: Veliko Tŭrnovo
Language: bul
Number of pages: 176
ISBN-13: 9789545093814
Notes: Summary in English and Bulgarian.