APA (7th ed.) Citation

Fan, X., & Grebel, E. K. (2003). A survey of z > 5.7 quasars in the Sloan Digital Sky Survey: II. Discovery of Three Additional Quasars at z > 6. The astronomical journal, 125(4), . https://doi.org/10.1086/368246

Chicago Style (17th ed.) Citation

Fan, Xiaohui, and Eva K. Grebel. "A Survey of Z > 5.7 Quasars in the Sloan Digital Sky Survey: II. Discovery of Three Additional Quasars at Z > 6." The Astronomical Journal 125, no. 4 (2003). https://doi.org/10.1086/368246.

MLA (9th ed.) Citation

Fan, Xiaohui, and Eva K. Grebel. "A Survey of Z > 5.7 Quasars in the Sloan Digital Sky Survey: II. Discovery of Three Additional Quasars at Z > 6." The Astronomical Journal, vol. 125, no. 4, 2003, https://doi.org/10.1086/368246.