Cite

Machine guns in action

MLA

Horne, Walter H., 1883-1921. Machine guns in action. Folder 5. 1915. https://collections.library.yale.edu/catalog/2015374.

APA, 6th edition

Horne, Walter H., 1883-1921. (["Folder 5"])(1915)[Machine guns in action]. https://collections.library.yale.edu/catalog/2015374.