Cite

Map of the main prison camps in Germany and Austria / by Mrs Pope-Hennessy.

MLA

Pope-Hennessy, Una, 1876-1949. Map of the main prison camps in Germany and Austria / by Mrs Pope-Hennessy.. [1917]. https://collections.library.yale.edu/catalog/15238007.

APA, 6th edition

Pope-Hennessy, Una, 1876-1949. ([1917])[Map of the main prison camps in Germany and Austria / by Mrs Pope-Hennessy.]. https://collections.library.yale.edu/catalog/15238007.