APA (7th ed.) Citation

Rubio, H. F., & Keats, J. Blue! 'tis the life of heaven: Mixed quartet or chorus. s.n.

Chicago Style (17th ed.) Citation

Rubio, Hilarion F., and John Keats. Blue! 'Tis the Life of Heaven: Mixed Quartet or Chorus. [S.l: s.n.

MLA (9th ed.) Citation

Rubio, Hilarion F., and John Keats. Blue! 'Tis the Life of Heaven: Mixed Quartet or Chorus. s.n.

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