APA (7th ed.) Citation

Kovalyov, M., Kovalyov, N., & Kovalyov, S. (2019). Tunguska explosion and the Earth's magnetic field.

Chicago Style (17th ed.) Citation

Kovalyov, M., N. Kovalyov, and S. Kovalyov. Tunguska Explosion and the Earth's Magnetic Field. 2019.

MLA (8th ed.) Citation

Kovalyov, M., et al. Tunguska Explosion and the Earth's Magnetic Field. 2019.

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