APA
Rybakov B., . (1965). Early centuries of Russian history. Moskow: Progress Publishers.
Chicago
Rybakov B, . 1965. Early centuries of Russian history. Moskow: Progress Publishers.
Harvard
Rybakov B., . (1965). Early centuries of Russian history. Moskow: Progress Publishers.
MLA
Rybakov B, . Early centuries of Russian history. Moskow: Progress Publishers. 1965.
