APA (7th ed.) Citation

Harbeck, D., Grebel, E. K., & Smith, G. H. (2003). CN abundance variations on the main sequence of 47 Tuc. Astronomische Nachrichten / Supplementary issue, 324, .

Chicago Style (17th ed.) Citation

Harbeck, Daniel-Rolf, Eva K. Grebel, and Graeme H. Smith. "CN Abundance Variations on the Main Sequence of 47 Tuc." Astronomische Nachrichten / Supplementary Issue 324 (2003).

MLA (9th ed.) Citation

Harbeck, Daniel-Rolf, et al. "CN Abundance Variations on the Main Sequence of 47 Tuc." Astronomische Nachrichten / Supplementary Issue, vol. 324, 2003.