Catalonia [cartographic material].
MLA
Catalonia [Cartographic Material]. Guiljelmus Blaeu, 0AD. https://collections.library.yale.edu/catalog/15487345.
APA, 6th edition
Catalonia [cartographic material]. (0 C.E.). [Maps]. Guiljelmus Blaeu, https://collections.library.yale.edu/catalog/15487345.