MLA

Steinberg, Saul, 1914-1999. Labyrinth: Samarkand. Box 536 (Oversize), folder 7222. 1956. https://collections.library.yale.edu/catalog/16855260.

APA, 6th edition

Steinberg, Saul, 1914-1999. (["Box 536 (Oversize), folder 7222"])(1956)[Labyrinth: Samarkand]. https://collections.library.yale.edu/catalog/16855260.