MLA

Plowden, David (1932). Former Railroad Depot, Where Lincoln Changed Trains on Way to Gettysburg to Make his Address. Hanover Junction, Pennsylvania (LFC). Box 166. 1964. https://collections.library.yale.edu/catalog/2043617.

APA, 6th edition

Plowden, David (1932). (["Box 166"])(1964)[Former Railroad Depot, Where Lincoln Changed Trains on Way to Gettysburg to Make his Address. Hanover Junction, Pennsylvania (LFC)]. https://collections.library.yale.edu/catalog/2043617.