MLA

Carson, Rachel, 1907-1964. Pesticides: lawsuits. Box 35, folder 642. 1958-59. https://collections.library.yale.edu/catalog/2055523.

APA, 6th edition

Carson, Rachel, 1907-1964. (["Box 35, folder 642"])(1958-59)[Pesticides: lawsuits]. https://collections.library.yale.edu/catalog/2055523.