MLA

Lindbergh, Charles A. (Charles Augustus), 1902-1974. New York City parade. Box 6, folder 4. 1927 June 13. https://collections.library.yale.edu/catalog/10011504.

APA, 6th edition

Lindbergh, Charles A. (Charles Augustus), 1902-1974. (["Box 6, folder 4"])(1927 June 13)[New York City parade]. https://collections.library.yale.edu/catalog/10011504.