APA (7th ed.) Citation

Grebel, E. K., Gallagher, J. S., & Harbeck, D. (2002). The progenitors of dwarf spheroidal galaxies. Bulletin of the American Astronomical Society, 34, .

Chicago Style (17th ed.) Citation

Grebel, Eva K., John S. Gallagher, and Daniel-Rolf Harbeck. "The Progenitors of Dwarf Spheroidal Galaxies." Bulletin of the American Astronomical Society 34 (2002).

MLA (9th ed.) Citation

Grebel, Eva K., et al. "The Progenitors of Dwarf Spheroidal Galaxies." Bulletin of the American Astronomical Society, vol. 34, 2002.