APA (7th ed.) Citation

Tate Britain (Gallery), Smith, A., & Ardill, T. (2011). Watercolour / edited by Alison Smith ; with contributions by Thomas Ardill ... [et al.]. Tate Publishing.

Chicago Style (17th ed.) Citation

Tate Britain (Gallery), Alison Smith, and Thomas Ardill. Watercolour / Edited by Alison Smith ; with Contributions by Thomas Ardill ... [et Al.]. London: Tate Publishing, 2011.

MLA (9th ed.) Citation

Tate Britain (Gallery), et al. Watercolour / Edited by Alison Smith ; with Contributions by Thomas Ardill ... [et Al.]. Tate Publishing, 2011.

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