APA (7th ed.) Citation

Karp, I. M., Nikitin, Y. Y., & Pianykh, Y. (2021). Renewable sources in the energy supply systems of ukrainian cities.

Chicago Style (17th ed.) Citation

Karp, I. M., Ye. Ye Nikitin, and Ye Pianykh. Renewable Sources in the Energy Supply Systems of Ukrainian Cities. 2021.

MLA (8th ed.) Citation

Karp, I. M., et al. Renewable Sources in the Energy Supply Systems of Ukrainian Cities. 2021.

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