APA (7th ed.) Citation

Harbeck, D., Smith, G. H., & Grebel, E. K. (2003). CN abundance variations on the main sequence of 47 Tucanae. The astronomical journal, 125(1), . https://doi.org/10.1086/345570

Chicago Style (17th ed.) Citation

Harbeck, Daniel-Rolf, Graeme H. Smith, and Eva K. Grebel. "CN Abundance Variations on the Main Sequence of 47 Tucanae." The Astronomical Journal 125, no. 1 (2003). https://doi.org/10.1086/345570.

MLA (9th ed.) Citation

Harbeck, Daniel-Rolf, et al. "CN Abundance Variations on the Main Sequence of 47 Tucanae." The Astronomical Journal, vol. 125, no. 1, 2003, https://doi.org/10.1086/345570.