APA Edition Citation

Asimov, I. (1983). Universe: From flat earth to quasar (3rd ed.). Penguin books.

Chicago Edition Citation

Asimov, Isaac. Universe: From Flat Earth to Quasar. 3rd ed. England: Penguin books, 1983.

MLA Edition Citation

Asimov, Isaac. Universe: From Flat Earth to Quasar. 3rd ed. Penguin books, 1983.

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