La Rue, P. d., & Wickham, E. Vexilia regis.
Chicago Style (17th ed.) CitationLa Rue, Pierre de, and Edward Wickham. Vexilia Regis.
MLA (9th ed.) CitationLa Rue, Pierre de, and Edward Wickham. Vexilia Regis.
Warning: These citations may not always be 100% accurate.