Sumaruk, T., & Sumaruk, P. (2010). Quasi-biennial variations of the solar and geomagnetic activities.
Chicago Style (17th ed.) CitationSumaruk, T., and P. Sumaruk. Quasi-biennial Variations of the Solar and Geomagnetic Activities. 2010.
MLA (8th ed.) CitationSumaruk, T., and P. Sumaruk. Quasi-biennial Variations of the Solar and Geomagnetic Activities. 2010.
Warning: These citations may not always be 100% accurate.