APA (7th ed.) Citation

Horseman, E. (1964). Hubble's bubble. Chatto & Windus.

Chicago Style (17th ed.) Citation

Horseman, Elaine. Hubble's Bubble. London: Chatto & Windus, 1964.

MLA (9th ed.) Citation

Horseman, Elaine. Hubble's Bubble. Chatto & Windus, 1964.

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