Kalinkov, B., Tabakov, I. [One Hundred and twenty] 120 Years Varna Chamber of Commerce and Industry (1895 - 2015). Varna: FIL, 2015 153 p, 978-954-9741-25-4.
Kalinkov, B., Tabakov, I. [One Hundred and twenty] 120 Years Varna Chamber of Commerce and Industry (1895 - 2015). Varna: FIL, 2015 153 p, 978-954-9741-25-4.
Kalinkov, B., Tabakov, I. (2015) [One Hundred and twenty] 120 Years Varna Chamber of Commerce and Industry (1895 - 2015), Varna: FIL 153 p, 978-954-9741-25-4.
Kalinkov, B., & Tabakov, I. (2015). [One Hundred and twenty] 120 Years Varna Chamber of Commerce and Industry (1895 - 2015). [Сто и двадесет] 120 години Варненска Търговско Индустриална камара. Varna: FIL, 153 p.
Kalinkov B, Tabakov I. [One Hundred and twenty] 120 Years Varna Chamber of Commerce and Industry (1895 - 2015): [Сто и двадесет] 120 години Варненска Търговско Индустриална камара. Varna: FIL; 2015. p. 153 p. ISBN: 978-954-9741-25-4.