APA (7th ed.) Citation

Asimov,Isaac. (1989). The rings of saturn. Hodder and stoughton.

Chicago Style (17th ed.) Citation

Asimov,Isaac. The Rings of Saturn. Great Britain: Hodder and stoughton, 1989.

MLA (9th ed.) Citation

Asimov,Isaac. The Rings of Saturn. Hodder and stoughton, 1989.

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