APA (7th ed.) Citation

Luhmann, J. G., & Earl, J. A. (1973). Solar and geomagnetic modulation of low-energy secondary cosmic ray electrons.

Chicago Style (17th ed.) Citation

Luhmann, J. G., and J. A. Earl. Solar and Geomagnetic Modulation of Low-energy Secondary Cosmic Ray Electrons. 1973.

MLA (9th ed.) Citation

Luhmann, J. G., and J. A. Earl. Solar and Geomagnetic Modulation of Low-energy Secondary Cosmic Ray Electrons. 1973.

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