APA (7th ed.) Citation

Placco, V. M., & Christlieb, N. (2014). Metal-poor stars observed with the Magellan telescope: II. Discovery of four stars with [Fe/H] <= -3.5. The astrophysical journal, 781(1), .

Chicago Style (17th ed.) Citation

Placco, Vinicius M., and Norbert Christlieb. "Metal-poor Stars Observed with the Magellan Telescope: II. Discovery of Four Stars with [Fe/H] <= -3.5." The Astrophysical Journal 781, no. 1 (2014).

MLA (9th ed.) Citation

Placco, Vinicius M., and Norbert Christlieb. "Metal-poor Stars Observed with the Magellan Telescope: II. Discovery of Four Stars with [Fe/H] <= -3.5." The Astrophysical Journal, vol. 781, no. 1, 2014.

Warning: These citations may not always be 100% accurate.