APA (7e ed.) Bronvermelding

Foster, S., & Gayford, M. (2001). BP Portrait Award: 1990-2001 / Introductory essay by Martin Gayford. National Portrait Gallery.

Chicago (17e ed.) Bronvermelding

Foster, Susie, en Martin Gayford. BP Portrait Award: 1990-2001 / Introductory Essay by Martin Gayford. National Portrait Gallery. London, 2001.

MLA (8e ed.) Bronvermelding

Foster, Susie, en Martin Gayford. BP Portrait Award: 1990-2001 / Introductory Essay by Martin Gayford. National Portrait Gallery. 2001.