MLA

Hovhaness, Alan, 1911-2000. Lists of Hovhaness's performances in his hand; printed performance notices and programs. Box 1, folder 10. 1953-56. https://collections.library.yale.edu/catalog/17167337.

APA, 6th edition

Hovhaness, Alan, 1911-2000. (["Box 1, folder 10"])(1953-56)[Lists of Hovhaness's performances in his hand; printed performance notices and programs]. https://collections.library.yale.edu/catalog/17167337.