In Newburyport, Massachusetts
MLA
Lindbergh, Charles A. (Charles Augustus), 1902-1974. In Newburyport, Massachusetts. Box 22A, folder 9. 1950-1952. https://collections.library.yale.edu/catalog/10187065.
APA, 6th edition
Lindbergh, Charles A. (Charles Augustus), 1902-1974. (["Box 22A, folder 9"])(1950-1952)[In Newburyport, Massachusetts]. https://collections.library.yale.edu/catalog/10187065.