DDT
MLA
Carson, Rachel, 1907-1964. DDT. Box 32, folder 566-67. 1946-60, n.d.. https://collections.library.yale.edu/catalog/17145162.
APA, 6th edition
Carson, Rachel, 1907-1964. (["Box 32, folder 566-67"])(1946-60, n.d.)[DDT]. https://collections.library.yale.edu/catalog/17145162.