APA (7th ed.) Citation

Butlin, M., Luther, M., & Warrell, I. (1989). Turner at Petworth: Painter & patron. Tate Gallery.

Chicago Style (17th ed.) Citation

Butlin, Martin, Mollie Luther, and Ian Warrell. Turner at Petworth: Painter & Patron. London: Tate Gallery, 1989.

MLA (9th ed.) Citation

Butlin, Martin, et al. Turner at Petworth: Painter & Patron. Tate Gallery, 1989.