APA (7th ed.) Citation

Frebel, A., & Christlieb, N. (2005). Nucleosynthetic signatures of the first stars. Nature, 434(?), . https://doi.org/10.1038/nature03455

Chicago Style (17th ed.) Citation

Frebel, Anna, and Norbert Christlieb. "Nucleosynthetic Signatures of the First Stars." Nature 434, no. ? (2005). https://doi.org/10.1038/nature03455.

MLA (9th ed.) Citation

Frebel, Anna, and Norbert Christlieb. "Nucleosynthetic Signatures of the First Stars." Nature, vol. 434, no. ?, 2005, https://doi.org/10.1038/nature03455.