APA (7th ed.) Citation

National Portrait Gallery (Great Britain) & Shulman, A. (2022). Elizabeth II: Princess, queen, icon. National Portrait Gallery.

Chicago Style (17th ed.) Citation

National Portrait Gallery (Great Britain) and Alexandra Shulman. Elizabeth II: Princess, Queen, Icon. London: National Portrait Gallery, 2022.

MLA (9th ed.) Citation

National Portrait Gallery (Great Britain) and Alexandra Shulman. Elizabeth II: Princess, Queen, Icon. National Portrait Gallery, 2022.