Cita APA

Tirion, W. (1981). Sky atlas 2000.0: 26 star charts, covering both hemispheres (Deluxe edition.). Cambridge, Massachusetts: Sky Publishing Corporation.

Citación estilo Chicago

Tirion, Wil. Sky Atlas 2000.0: 26 Star Charts, Covering Both Hemispheres. Deluxe edition. Cambridge, Massachusetts: Sky Publishing Corporation, 1981.

Cita MLA

Tirion, Wil. Sky Atlas 2000.0: 26 Star Charts, Covering Both Hemispheres. Deluxe edition. Cambridge, Massachusetts: Sky Publishing Corporation, 1981.