APA (7th ed.) Citation

Hurzhii, O. I. (2013). Robak I., Savchuk Z. Valentyn Otamanovs'kyi – Revolutionary, Scientist, Science Organizer.

Chicago Style (17th ed.) Citation

Hurzhii, O. I. Robak I., Savchuk Z. Valentyn Otamanovs'kyi – Revolutionary, Scientist, Science Organizer. 2013.

MLA (8th ed.) Citation

Hurzhii, O. I. Robak I., Savchuk Z. Valentyn Otamanovs'kyi – Revolutionary, Scientist, Science Organizer. 2013.

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