Cite

Bavarian Palatinate : with Birkenfeld and part of Rhenish Prussia.

MLA

Bavarian Palatinate : with Birkenfeld and Part of Rhenish Prussia. War Office, 1918. https://collections.library.yale.edu/catalog/15483044.

APA, 6th edition

Bavarian Palatinate : with Birkenfeld and part of Rhenish Prussia. (1918). [Maps]. War Office, https://collections.library.yale.edu/catalog/15483044.