Cite

On a sailboat

MLA

Lindbergh, Charles A. (Charles Augustus), 1902-1974. On a sailboat. Box 8, folder 3. 1928. https://collections.library.yale.edu/catalog/10013235.

APA, 6th edition

Lindbergh, Charles A. (Charles Augustus), 1902-1974. (["Box 8, folder 3"])(1928)[On a sailboat]. https://collections.library.yale.edu/catalog/10013235.