MLA

of Manuscripts, Yale University. Department, and Archives. Book III Print 6: United States Hostages. 1958. https://collections.library.yale.edu/catalog/10018132.

APA, 6th edition

of Manuscripts, Y. U. D., & A. (1958). Book III Print 6: United States hostages. https://collections.library.yale.edu/catalog/10018132.