APA (7th ed.) Citation

Gunn, S., & Bell, R. (2003). Middle classes: Their rise and sprawl. Phonix.

Chicago Style (17th ed.) Citation

Gunn, Simon, and Rachel Bell. Middle Classes: Their Rise and Sprawl. London: Phonix, 2003.

MLA (9th ed.) Citation

Gunn, Simon, and Rachel Bell. Middle Classes: Their Rise and Sprawl. Phonix, 2003.