APA (7th ed.) Citation

Plainsong and Mediaeval Music Society (Great Britain) & Everist, M. (1988). French 13th-century polyphony in the British Library: A facsimile edition of the manuscripts Additional 30091 and Egerton 2615 (folios 79-94v). Plainsong and Mediaeval Music Society.

Chicago Style (17th ed.) Citation

Plainsong and Mediaeval Music Society (Great Britain) and Mark Everist. French 13th-century Polyphony in the British Library: A Facsimile Edition of the Manuscripts Additional 30091 and Egerton 2615 (folios 79-94v). London: Plainsong and Mediaeval Music Society, 1988.

MLA (9th ed.) Citation

Plainsong and Mediaeval Music Society (Great Britain) and Mark Everist. French 13th-century Polyphony in the British Library: A Facsimile Edition of the Manuscripts Additional 30091 and Egerton 2615 (folios 79-94v). Plainsong and Mediaeval Music Society, 1988.

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