The New Grove Dictionary of Music and Musicians, 2001

The third and fourth booke of ayres: so as they may be expressed by one voyce, with a violl, lute, or orpharion, Performers' Facsimiles, New York, 1995 (Thomas Campion)

Campion, Dowland and the Lutenist Songwriters, Col. English Solo Song guides to the repertoire, ed. Duckworth, 1989 (Michael Pilkington)

p. 43 (Thomas Campion (1567-1620); The third booke of ayres, Composed So as they may be expressed by one Voyce, with a Violl, Lute, or Orpharion, 1618)

(Campion, Thomas; Songs; The third and fourth booke of ayres (London, ?1617)