MLA

Kissinger, Henry, 1923-2023. German Geography, Transportation. Box 115, folder 18. 1948. https://collections.library.yale.edu/catalog/11784346.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 115, folder 18"])(1948)[German Geography, Transportation]. https://collections.library.yale.edu/catalog/11784346.