APA (7th ed.) Citation

Dunlop, S., & Tirion, W. (2016). 2017 guide to the night sky / Storm Dunlop and Wil Tirion. Collins.

Chicago Style (17th ed.) Citation

Dunlop, Storm, and Wil Tirion. 2017 Guide to the Night Sky / Storm Dunlop and Wil Tirion. Glasgow: Collins, 2016.

MLA (9th ed.) Citation

Dunlop, Storm, and Wil Tirion. 2017 Guide to the Night Sky / Storm Dunlop and Wil Tirion. Collins, 2016.

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