MLA

Kissinger, Henry, 1923-2023. Gustafson, Kristian-chapters on Chile with related messages from William D. Rogers [3 of 4]. Box 653, folder 8. 2004-2005, undated. https://collections.library.yale.edu/catalog/11780767.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 653, folder 8"])(2004-2005, undated)[Gustafson, Kristian-chapters on Chile with related messages from William D. Rogers [3 of 4]]. https://collections.library.yale.edu/catalog/11780767.