Cita APA (7th ed.)

Anderson, P. (1967). The trouble twisters. Gollancz.

Cita Chicago (17th ed.)

Anderson, Poul. The Trouble Twisters. London: Gollancz, 1967.

Cita MLA (8th ed.)

Anderson, Poul. The Trouble Twisters. Gollancz, 1967.