APA Citation

Asimov, I. (1971). The universe: From flat earth to quasar. Harmondsworth, Middlesex: Penguin.

Chicago Style Citation

Asimov, Isaac. The Universe: From Flat Earth to Quasar. Harmondsworth, Middlesex: Penguin, 1971.

MLA Citation

Asimov, Isaac. The Universe: From Flat Earth to Quasar. Harmondsworth, Middlesex: Penguin, 1971.

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