Cite

Unknown printer "Cook's Quarters, Camp Bartlett, Westfield, Mass. Preparing the Soldiers' Feed'" Postcard (blue)

MLA

Simpson, Randolph Linsly, 1927-1992. Unknown printer "Cook's Quarters, Camp Bartlett, Westfield, Mass. Preparing the Soldiers' Feed'" Postcard (blue). Box 25. circa 1918. https://collections.library.yale.edu/catalog/16172723.

APA, 6th edition

Simpson, Randolph Linsly, 1927-1992. (["Box 25"])(circa 1918)[Unknown printer "Cook's Quarters, Camp Bartlett, Westfield, Mass. Preparing the Soldiers' Feed'" Postcard (blue)]. https://collections.library.yale.edu/catalog/16172723.