APA (7th ed.) Citation

Sumaruk, Y. P. (2011). Long term changes of geomagnetic field according to the data of observations at the magnetic observatories of Ukraine.

Chicago Style (17th ed.) Citation

Sumaruk, Yu. P. Long Term Changes of Geomagnetic Field According to the Data of Observations at the Magnetic Observatories of Ukraine. 2011.

MLA (8th ed.) Citation

Sumaruk, Yu. P. Long Term Changes of Geomagnetic Field According to the Data of Observations at the Magnetic Observatories of Ukraine. 2011.

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