Concilia
MLA
Maassen, Friedrich, et al. Concilia. Monumenta Germaniae Historica. Leges Iii. Concilia.
APA, 7th edition
Maassen, F., Werminghoff, A., Bastgen, B., Hartmann, W., & Theodulf, T. Concilia. Monumenta Germaniae historica. Leges III. Concilia.
Chicago, 17th edition
Maassen, Friedrich, Albert Werminghoff, Beda Bastgen, Wilfried Hartmann, and Theodulf. Concilia. Monumenta Germaniae historica. Leges III. Concilia. 2 vols.