APA (7th ed.) Citation

Southey, R., Coleridge, S. T., & Gittings, R. (1969). Omniana or Horae otiosiores. Centaur.

Chicago Style (17th ed.) Citation

Southey, Robert, Samuel Taylor Coleridge, and Robert Gittings. Omniana or Horae Otiosiores. Fontwell: Centaur, 1969.

MLA (9th ed.) Citation

Southey, Robert, et al. Omniana or Horae Otiosiores. Centaur, 1969.