APA (7th ed.) Citation

Emrich, P., Jurina, V., & Povinec, P. Radioactivity of lunar regolith brought to the earth by automatic stations Luna.

Chicago Style (17th ed.) Citation

Emrich, P., V. Jurina, and Pavel Povinec. Radioactivity of Lunar Regolith Brought to the Earth by Automatic Stations Luna.

MLA (9th ed.) Citation

Emrich, P., et al. Radioactivity of Lunar Regolith Brought to the Earth by Automatic Stations Luna.

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