MLA

United States. American Commission to Negotiate Peace, United States. Army. Corps of Engineers. 29th Battalion (Base Topographic). Cities of Europe in 1910.. BRBL_00037A. 1919].. https://collections.library.yale.edu/catalog/15259165.

APA, 6th edition

United States. American Commission to Negotiate Peace, & United States. Army. Corps of Engineers. 29th Battalion (Base Topographic). (["BRBL_00037A"])(1919].)[Cities of Europe in 1910.]. https://collections.library.yale.edu/catalog/15259165.