The booke of common praier noted, 1550.
MLA
of England. Book of common prayer., Church. The Booke of Common Praier Noted, 1550. Imprinted by Richard Grafton printer to the Kinges Maiestie, 1550. https://collections.library.yale.edu/catalog/16600475.
APA, 6th edition
of England. Book of common prayer., C. (1550). The booke of common praier noted, 1550. [Musical notation, prayer books (AAT)]. Imprinted by Richard Grafton printer to the Kinges Maiestie, https://collections.library.yale.edu/catalog/16600475.