MLA

Erdoes, Richard, 1912-2008. Young Guns. Box 84 | December New Mexico Towns, Silverado, Young Guns, Farelitos. 1988. https://collections.library.yale.edu/catalog/2104451.

APA, 6th edition

Erdoes, Richard, 1912-2008. (["Box 84 | December New Mexico Towns, Silverado, Young Guns, Farelitos"])(1988)[Young Guns]. https://collections.library.yale.edu/catalog/2104451.