APA Citation

Wilson, R. UR on the ruhr: : NRW state archive, Duisburg, Germany.

Chicago Style Citation

Wilson, Rob. UR On the Ruhr: : NRW State Archive, Duisburg, Germany.

MLA Citation

Wilson, Rob. UR On the Ruhr: : NRW State Archive, Duisburg, Germany.

Warning: These citations may not always be 100% accurate.