APA (7th ed.) Citation

Monaco, L., Caffau, E., & Ludwig, H. (2012). Lithium and sodium in the globular cluster M 4: Detection of a Li-rich dwarf star: preservation or pollution? Astronomy and astrophysics, 539(3), .

Chicago Style (17th ed.) Citation

Monaco, Lorenzo, Elisabetta Caffau, and Hans-Günter Ludwig. "Lithium and Sodium in the Globular Cluster M 4: Detection of a Li-rich Dwarf Star: Preservation or Pollution?" Astronomy and Astrophysics 539, no. 3 (2012).

MLA (9th ed.) Citation

Monaco, Lorenzo, et al. "Lithium and Sodium in the Globular Cluster M 4: Detection of a Li-rich Dwarf Star: Preservation or Pollution?" Astronomy and Astrophysics, vol. 539, no. 3, 2012.

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