Source images IDS 17802 BCz, 243, p. 69-70, p. 70 (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, 243, p. 69-70; copying, dissemination or publication in any form (including electronic) solely with prior written permission from the source's owner.
