Source images IDS 15838 BCz, 2242, p. 20-21, p. 20 (Latin fair copy in secretary's hand, author's signature, 16th-century) 
Facsimile of the source from the collection of Muzeum Narodowe w Krakowie, Biblioteka Czartoryskich, 2242, p. 20-21; copying, dissemination or publication in any form (including electronic) solely with prior written permission from the source's owner.
