APA (7th ed.) Citation

BARNES. (1989). Cartridges of the worlds (6th ed.). DBI Book.

Chicago Style (17th ed.) Citation

BARNES. Cartridges of the Worlds. 6th ed. Northbook: DBI Book, 1989.

MLA (8th ed.) Citation

BARNES. Cartridges of the Worlds. 6th ed. DBI Book, 1989.

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