APA (7th ed.) Citation

Catholic Church, British Library, & Wright, D. H. (1967). The Vespasian Psalter. Rosenkilde and Bagger.

Chicago Style (17th ed.) Citation

Catholic Church, British Library, and David H. Wright. The Vespasian Psalter. Copenhagen: Rosenkilde and Bagger, 1967.

MLA (9th ed.) Citation

Catholic Church, et al. The Vespasian Psalter. Rosenkilde and Bagger, 1967.