"A pelagic or deep sea fish of the genus Trachyptorus." Pen-and-ink over pencil, 18 x 23 cm.
MLA
Stenzel, Franz (1906-1998). "A pelagic or deep sea fish of the genus Trachyptorus." Pen-and-ink over pencil, 18 x 23 cm.. Box 6a, folder 118. 1865 Jul 11. https://collections.library.yale.edu/catalog/2003187.
APA, 6th edition
Stenzel, Franz (1906-1998). (["Box 6a, folder 118"])(1865 Jul 11)["A pelagic or deep sea fish of the genus Trachyptorus." Pen-and-ink over pencil, 18 x 23 cm.]. https://collections.library.yale.edu/catalog/2003187.
