Cite

[Sketches of the Skookum, half bird and half man "lives in the forest and eats Indians."] Pencil sketches, 29.2 x 15.9 cm.

MLA

Stenzel, Franz (1906-1998). [Sketches of the Skookum, half bird and half man "lives in the forest and eats Indians."] Pencil sketches, 29.2 x 15.9 cm.. Box 6, folder 102. [1873 May ?]. https://collections.library.yale.edu/catalog/2003170.

APA, 6th edition

Stenzel, Franz (1906-1998). (["Box 6, folder 102"])([1873 May ?])[[Sketches of the Skookum, half bird and half man "lives in the forest and eats Indians."] Pencil sketches, 29.2 x 15.9 cm.]. https://collections.library.yale.edu/catalog/2003170.