Gradvalia
Subtitle: ac, Cantiones sacrae, quinis quaternis trinisque vocibus concinnatae.
Publisher: T. Este
Published: 1605
Place of publication: Londoni
Subjects: Part-songs, Sacred -- To 1800
Work titles: Gradualia. Book 1
Notes: Parts for superius, medius, tenor, contratenor and bassus.

Microfilm of the copy in the York Minster Library. Wakefield, Yorks. Micro Methods. n.d.] 1 reel.