APA (7th ed.) Citation

British Library & Barker, N. (1989). Treasures of the British Library. Abrams.

Chicago Style (17th ed.) Citation

British Library and Nicolas Barker. Treasures of the British Library. New York: Abrams, 1989.

MLA (8th ed.) Citation

British Library and Nicolas Barker. Treasures of the British Library. Abrams, 1989.

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