Riding with the shadow of the squirrel on the wire
MLA
Steinberg, Saul, 1914-1999. Riding with the shadow of the squirrel on the wire. Box 375, folder 5061. circa 1985-1994. https://collections.library.yale.edu/catalog/16854832.
APA, 6th edition
Steinberg, Saul, 1914-1999. (["Box 375, folder 5061"])(circa 1985-1994)[Riding with the shadow of the squirrel on the wire]. https://collections.library.yale.edu/catalog/16854832.