"RLS/F/A No. 27A Inland Voyage"
MLA
Beinecke, Edwin J. (Edwin John), 1886-1970. "RLS/F/A No. 27A Inland Voyage". Box 38, folder 851. undated. https://collections.library.yale.edu/catalog/16609878.
APA, 6th edition
Beinecke, Edwin J. (Edwin John), 1886-1970. (["Box 38, folder 851"])(undated)["RLS/F/A No. 27A Inland Voyage"]. https://collections.library.yale.edu/catalog/16609878.