Cite

Stiria = Steyrmarck [cartographic material].

MLA

Blaeu, Willem Janszoon, 1571-1638. Stiria = Steyrmarck [cartographic material].. [ca. 1634]. https://collections.library.yale.edu/catalog/2111133.

APA, 6th edition

Blaeu, Willem Janszoon, 1571-1638. ([ca. 1634])[Stiria = Steyrmarck [cartographic material].]. https://collections.library.yale.edu/catalog/2111133.