Camp de Lassigny, Anciennes Organisations Francaises et Allemandes [cartographic material].
MLA
Geological Survey (U.S.). Camp de Lassigny, Anciennes Organisations Francaises et Allemandes [cartographic material].. BRBL_00173. 1916?]. https://collections.library.yale.edu/catalog/15826963.
APA, 6th edition
Geological Survey (U.S.). (["BRBL_00173"])(1916?])[Camp de Lassigny, Anciennes Organisations Francaises et Allemandes [cartographic material].]. https://collections.library.yale.edu/catalog/15826963.