MLA

Steinberg, Saul, 1914-1999. Smithsonian Institution Artist-in-Residence Program notes and drawings including seventy-six drawings on Smithsonian stationery and blank stationery. Box 59, folder 1090-1091. circa 1967 January- April. https://collections.library.yale.edu/catalog/32366239.

APA, 6th edition

Steinberg, Saul, 1914-1999. (["Box 59, folder 1090-1091"])(circa 1967 January- April)[Smithsonian Institution Artist-in-Residence Program notes and drawings including seventy-six drawings on Smithsonian stationery and blank stationery]. https://collections.library.yale.edu/catalog/32366239.