APA (7th ed.) Citation

Heffer, S., & Lucie-Smith, E. (2016). Steven Heffer: A very British Modernist. Unicorn.

Chicago Style (17th ed.) Citation

Heffer, Steven, and Edward Lucie-Smith. Steven Heffer: A Very British Modernist. London: Unicorn, 2016.

MLA (9th ed.) Citation

Heffer, Steven, and Edward Lucie-Smith. Steven Heffer: A Very British Modernist. Unicorn, 2016.

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