APA (7th ed.) Citation

Pratchett, T., & Baxter, S. (2016). The long cosmos. Harper Collins Publishers.

Chicago Style (17th ed.) Citation

Pratchett, Terry, and Stephen Baxter. The Long Cosmos. New York: Harper Collins Publishers, 2016.

MLA (9th ed.) Citation

Pratchett, Terry, and Stephen Baxter. The Long Cosmos. Harper Collins Publishers, 2016.