Pseudomonarchia Daemonum
Johannes Trithemius mentions two separate works ("Liber" quoque "Officiorum", and "De Officiis Spirituum"), indicating that the text may have branched off by his time. Weyer, in his "Pseudomonarchia Daemonum", lists his source as "Liber officiorum spirituum." Thomas Rudd titles his copy of the "Ars Goetia" as "Liber Malorum Spirituum."