Cita APA

Sandage, A., & Bedke, J. (1994). The Carnegie atlas of galaxies. Washington, D.C.: Carnegie Institution of Washington.

Citación estilo Chicago

Sandage, Allan, y John Bedke. The Carnegie Atlas of Galaxies. Washington, D.C.: Carnegie Institution of Washington, 1994.

Cita MLA

Sandage, Allan, y John Bedke. The Carnegie Atlas of Galaxies. Washington, D.C.: Carnegie Institution of Washington, 1994.