APA (7th ed.) Citation

Vickers, J. J., Grebel, E. K., & Huxor, A. P. (2012). Identifying blue horizontal branch stars using the z-filter. The astronomical journal, 143(4), .

Chicago Style (17th ed.) Citation

Vickers, John J., Eva K. Grebel, and Avon P. Huxor. "Identifying Blue Horizontal Branch Stars Using the Z-filter." The Astronomical Journal 143, no. 4 (2012).

MLA (9th ed.) Citation

Vickers, John J., et al. "Identifying Blue Horizontal Branch Stars Using the Z-filter." The Astronomical Journal, vol. 143, no. 4, 2012.