Cita APA (7a ed.)

Williams, N., & Williams, G. (1999). Naum Gabo: 29 April - 26 June 1999, Annely Juda Fine Art, London / catalogue Annely Juda Fine Art / Nina and Graham Williams.

Cita Chicago Style (17a ed.)

Williams, Nina, y Graham Williams. Naum Gabo: 29 April - 26 June 1999, Annely Juda Fine Art, London / Catalogue Annely Juda Fine Art / Nina and Graham Williams. London, 1999.

Cita MLA (8a ed.)

Williams, Nina, y Graham Williams. Naum Gabo: 29 April - 26 June 1999, Annely Juda Fine Art, London / Catalogue Annely Juda Fine Art / Nina and Graham Williams. 1999.