De Concilio, et legitime judicandis controversiis religionis, criminum, quae in Mart. Bucerum Joh. Cochlaeus ad Illustrissimos Principes ac clarissimos Ordines S. Ro. Imperij per Germaniam, & quae Joh. Gropperus ad Maiest. Imperatoriam perscripsit, confutatio. Epistola Jo. Cochlaei ad eosdem Ordines, in Mart. Bucerum
Version 3 can be requested by using "Content Negotiation" as described in IIIF API Version Switching