MLA

Lindbergh, Charles A. (Charles Augustus), 1902-1974. Aboard and leaving the USS Memphis. Box 6, folder 1-2. 1927 June 10-11. https://collections.library.yale.edu/catalog/10013118.

APA, 6th edition

Lindbergh, Charles A. (Charles Augustus), 1902-1974. (["Box 6, folder 1-2"])(1927 June 10-11)[Aboard and leaving the USS Memphis]. https://collections.library.yale.edu/catalog/10013118.