APA (7th ed.) Citation

Gordienko, I., Gordienko, V., & Zavgorodnyaya, O. (2018). Geothermal resources of Ukraine.

Chicago Style (17th ed.) Citation

Gordienko, I., V. Gordienko, and O. Zavgorodnyaya. Geothermal Resources of Ukraine. 2018.

MLA (8th ed.) Citation

Gordienko, I., et al. Geothermal Resources of Ukraine. 2018.

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