Cite

Pan American Airways group?

MLA

Lindbergh, Charles A. (Charles Augustus), 1902-1974. Pan American Airways group?. Box 9, folder 13. 1929 September. https://collections.library.yale.edu/catalog/10013275.

APA, 6th edition

Lindbergh, Charles A. (Charles Augustus), 1902-1974. (["Box 9, folder 13"])(1929 September)[Pan American Airways group?]. https://collections.library.yale.edu/catalog/10013275.