APA (7th ed.) Citation

Guhathakurta, P., Reitzel, D. B., & Grebel, E. K. (2000). Keck studies of M31's stellar halo. Discoveries and research prospects with 8 - 10 meter class telescopes.

Chicago Style (17th ed.) Citation

Guhathakurta, Puragra, David B. Reitzel, and Eva K. Grebel. "Keck Studies of M31's Stellar Halo." Discoveries and Research Prospects with 8 - 10 Meter Class Telescopes 2000.

MLA (9th ed.) Citation

Guhathakurta, Puragra, et al. "Keck Studies of M31's Stellar Halo." Discoveries and Research Prospects with 8 - 10 Meter Class Telescopes, 2000.