APA (7th ed.) Citation

Ognev, N. (1977). Kostya Ryabtsev's diary. Progress Publishers.

Chicago Style (17th ed.) Citation

Ognev, N. Kostya Ryabtsev's Diary. Moscow: Progress Publishers, 1977.

MLA (9th ed.) Citation

Ognev, N. Kostya Ryabtsev's Diary. Progress Publishers, 1977.

Warning: These citations may not always be 100% accurate.