APA (7th ed.) Citation

Valʹkova, O. A. (2006). Olʹga Aleksandrovna Fedčenko: 1845 - 1921. Nauka.

Chicago Style (17th ed.) Citation

Valʹkova, Olʹga Aleksandrovna. Olʹga Aleksandrovna Fedčenko: 1845 - 1921. Moskva: Nauka, 2006.

MLA (9th ed.) Citation

Valʹkova, Olʹga Aleksandrovna. Olʹga Aleksandrovna Fedčenko: 1845 - 1921. Nauka, 2006.

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