APA (7th ed.) Citation

Sumaruk, Y., & Reda, J. (2011). Secular variations of the geomagnetic field and solar activity. Геофизический журнал.

Chicago Style (17th ed.) Citation

Sumaruk, Yu, and J. Reda. "Secular Variations of the Geomagnetic Field and Solar Activity." Геофизический журнал 2011.

MLA (8th ed.) Citation

Sumaruk, Yu, and J. Reda. "Secular Variations of the Geomagnetic Field and Solar Activity." Геофизический журнал, 2011.

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