Cite

Grand Canyon - Kolb Studio at head of trail

MLA

Kolb, Emery Clifford, 1881-1976. Grand Canyon - Kolb Studio at head of trail. Box 4 | Folder 138. undated. https://collections.library.yale.edu/catalog/2025239.

APA, 6th edition

Kolb, Emery Clifford, 1881-1976. (["Box 4 | Folder 138"])(undated)[Grand Canyon - Kolb Studio at head of trail]. https://collections.library.yale.edu/catalog/2025239.