APA-Zitierstil (7. Ausg.)

Cohen, J. G., & Christlieb, N. (2005). The frequency of carbon stars among extremely metal-poor stars. The astrophysical journal. Part 2, Letters, 633(2), .

Chicago-Zitierstil (17. Ausg.)

Cohen, Judith G., und Norbert Christlieb. "The Frequency of Carbon Stars Among Extremely Metal-poor Stars." The Astrophysical Journal. Part 2, Letters 633, no. 2 (2005).

MLA-Zitierstil (9. Ausg.)

Cohen, Judith G., und Norbert Christlieb. "The Frequency of Carbon Stars Among Extremely Metal-poor Stars." The Astrophysical Journal. Part 2, Letters, vol. 633, no. 2, 2005.