APA (7th ed.) Citation

Pratchett, T. (1998). The Johnny Maxwell trilogy. Science Fiction Book Club.

Chicago Style (17th ed.) Citation

Pratchett, Terry. The Johnny Maxwell Trilogy. New York: Science Fiction Book Club, 1998.

MLA (9th ed.) Citation

Pratchett, Terry. The Johnny Maxwell Trilogy. Science Fiction Book Club, 1998.

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