APA (7th ed.) Citation

Usenko, I. B. (2015). Pages of the scientific biography of Professor O. M. Gulyayev: "Kyiv" period of 1895 – 1908.

Chicago Style (17th ed.) Citation

Usenko, I. B. Pages of the Scientific Biography of Professor O. M. Gulyayev: "Kyiv" Period of 1895 – 1908. 2015.

MLA (8th ed.) Citation

Usenko, I. B. Pages of the Scientific Biography of Professor O. M. Gulyayev: "Kyiv" Period of 1895 – 1908. 2015.

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