MLA

Carson, Rachel, 1907-1964. The Sea Around Us: scrapbook. Box 114, folder 2204. n.d.. https://collections.library.yale.edu/catalog/15808364.

APA, 6th edition

Carson, Rachel, 1907-1964. (["Box 114, folder 2204"])(n.d.)[The Sea Around Us: scrapbook]. https://collections.library.yale.edu/catalog/15808364.