MLA

Metcalf, William L. Plate No. 131: Winter's Festival. R.L. Bernier, 1916. https://collections.library.yale.edu/catalog/2003525.

APA, 6th edition

Metcalf, W. L. (1916). Plate No. 131: Winter's festival. R.L. Bernier. https://collections.library.yale.edu/catalog/2003525.