On the skirmish line
MLA
Schreyvogel, Charles, 1861-1912, artist. On the skirmish line. [1906?]. https://collections.library.yale.edu/catalog/2016195.
APA, 6th edition
Schreyvogel, Charles, 1861-1912, artist. ([1906?])[On the skirmish line]. https://collections.library.yale.edu/catalog/2016195.