MLA

Kissinger, Henry, 1923-2023. McDougal, Myres S. and Leon Lipson, "Perspectives for a Law of Outer Space," American Journal of International Law. Box 289, folder 13. 1958 July. https://collections.library.yale.edu/catalog/11787215.

APA, 6th edition

Kissinger, Henry, 1923-2023. (["Box 289, folder 13"])(1958 July)[McDougal, Myres S. and Leon Lipson, "Perspectives for a Law of Outer Space," American Journal of International Law]. https://collections.library.yale.edu/catalog/11787215.