Patent for Millsap's Hand-Printer for Mailer-Strips and Proof-Sheets
MLA
Kagan, Paul, 1943-1993. Patent for Millsap's Hand-Printer for Mailer-Strips and Proof-Sheets. Box 12, folder 228. 1920. https://collections.library.yale.edu/catalog/16355061.
APA, 6th edition
Kagan, Paul, 1943-1993. (["Box 12, folder 228"])(1920)[Patent for Millsap's Hand-Printer for Mailer-Strips and Proof-Sheets]. https://collections.library.yale.edu/catalog/16355061.