MLA

Library, Yale University. Arabic Manuscripts in the Yale University Library, Compiled by Leon Nemoy. Connecticut Academy of arts and sciences, 1956. https://collections.library.yale.edu/catalog/17389059.

APA, 6th edition

Library, Y. U. (1956). Arabic manuscripts in the Yale University Library, compiled by Leon Nemoy. [Library catalogs]. Connecticut Academy of arts and sciences. https://collections.library.yale.edu/catalog/17389059.