Mammals
MLA
Metzerott, Richard, and J. H. Mammals. C. Wendell, printer, 1857. https://collections.library.yale.edu/catalog/2005254.
APA, 6th edition
Metzerott, R., & J. H. (1857). Mammals [Illustrations]. C. Wendell, printer. https://collections.library.yale.edu/catalog/2005254.