APA (7th ed.) Citation

291114 Fraga, S., & Karwowski, J. Atomic energy levels: Data for parametric calculations.

Chicago Style (17th ed.) Citation

291114 Fraga, Serafin, and Jacek Karwowski. Atomic Energy Levels: Data for Parametric Calculations.

MLA (9th ed.) Citation

291114 Fraga, Serafin, and Jacek Karwowski. Atomic Energy Levels: Data for Parametric Calculations.

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