Стиль цитування APA (7-ме видання)

Kovalchuk, H. I. (2017). Stepan Yosypovych Petrov – the head of Rare and Valuable Books Department of the State Public Library of Ukrainian SSR (1949–1961).

Чикаго стиль цитування (17-те видання)

Kovalchuk, H. I. Stepan Yosypovych Petrov – the Head of Rare and Valuable Books Department of the State Public Library of Ukrainian SSR (1949–1961). 2017.

Стиль цитування MLA (8-ме видання)

Kovalchuk, H. I. Stepan Yosypovych Petrov – the Head of Rare and Valuable Books Department of the State Public Library of Ukrainian SSR (1949–1961). 2017.