This book includes an English translation of Dante's De monarchia in the section titled "Translations of the Texts." Also available in print at Hunter (call number listed above).
Indiana Critical Edition: English translation by Mark Musa (no Italian text) with notes, synopses of the cantos, and ten critical essays by various scholars.
"The California Lectura Dantis is the long-awaited companion to the three-volume verse translation by Allen Mandelbaum of Dante's Divine Comedy... This collection of commentaries on the first part of the Comedy consists of commissioned essays, one for each canto, by a distinguished group of international scholar-critics."
"This new critical volume, the second to appear in the three-volume Lectura Dantis, contains expert, focused commentary on the Purgatorio by thirty-three international scholars, each of whom presents to the nonspecialist reader one of the cantos of the transitional middle cantica of Dante's unique Christian epic."