APA (7th ed.) Citation

Gerald von Wales & Brewer, J. S. (1863). Giraldi Cambrensis Opera. Longman [u.a.].

Chicago Style (17th ed.) Citation

Gerald von Wales and John S. Brewer. Giraldi Cambrensis Opera. London: Longman [u.a.], 1863.

MLA (9th ed.) Citation

Gerald von Wales and John S. Brewer. Giraldi Cambrensis Opera. Longman [u.a.], 1863.