Стиль цитування APA (7-ме видання)

Holovko, O. B. (2014). North Black Sea Region and Azov Sea Region in the Political and Economic Development of Rus' (9 – Middle 13th).

Чикаго стиль цитування (17-те видання)

Holovko, O. B. North Black Sea Region and Azov Sea Region in the Political and Economic Development of Rus' (9 – Middle 13th). 2014.

Стиль цитування MLA (8-ме видання)

Holovko, O. B. North Black Sea Region and Azov Sea Region in the Political and Economic Development of Rus' (9 – Middle 13th). 2014.