Unsigned drawing. “Per una via di Colombo.” No source, no date. [10363-1]
MLA
Unsigned Drawing. “Per Una via Di Colombo.” No Source, No Date. [10363-1]. 0AD. https://collections.library.yale.edu/catalog/10666539.
APA, 6th edition
Unsigned drawing. “Per una via di Colombo.” No source, no date. [10363-1]. (0 C.E.). [Scrapbooks]. https://collections.library.yale.edu/catalog/10666539.