Wilmart, D. (1940). Precum libelli quattuor aevi Karolini. Ephemerides Liturgicae.
Chicago Style (17th ed.) CitationWilmart, D.A. Precum Libelli Quattuor Aevi Karolini. Roma: Ephemerides Liturgicae, 1940.
MLA (9th ed.) CitationWilmart, D.A. Precum Libelli Quattuor Aevi Karolini. Ephemerides Liturgicae, 1940.
Warning: These citations may not always be 100% accurate.