APA (7th ed.) Citation

Tirion, W., & Sinnott, R. W. (1998). Sky atlas 2000.0: Twenty-six star charts, covering both hemispheres, and seven detailed charts of selected regions (2nd ed., deluxe version.). Sky [etc.].

Chicago Style (17th ed.) Citation

Tirion, Wil, and Roger W. Sinnott. Sky Atlas 2000.0: Twenty-six Star Charts, Covering Both Hemispheres, and Seven Detailed Charts of Selected Regions. 2nd ed., deluxe version. Cambridge (Massachusetts) [etc.]: Sky [etc.], 1998.

MLA (9th ed.) Citation

Tirion, Wil, and Roger W. Sinnott. Sky Atlas 2000.0: Twenty-six Star Charts, Covering Both Hemispheres, and Seven Detailed Charts of Selected Regions. 2nd ed., deluxe version. Sky [etc.], 1998.

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