* "Albertus Magnus - De Adhaerendo Deo - On Cleaving to God* Online Galleries, History of Science Collections, University of Oklahoma Libraries High resolution images of works by Albertus Magnus in .jpg and .tiff format.
*"Albertus Magnus – De Adhaerendo Deo – On Cleaving to God*Online Galleries, History of Science Collections, University of Oklahoma Libraries High resolution images of works by Albertus Magnus in .jpg and .tiff format.