Cite

The Gea map of Europe.

MLA

verlag, Gea. The Gea Map of Europe. GEA Verlag, Berlin, 1921. https://collections.library.yale.edu/catalog/15826765.

APA, 6th edition

verlag, G. (1921). The Gea map of Europe. [Maps]. GEA Verlag, Berlin, https://collections.library.yale.edu/catalog/15826765.