Cite

Guide map of the Mammoth Cave, Kentucky / drawn by Horace C. Hovey.

MLA

Hovey, Horace Carter, 1833-1914. Guide map of the Mammoth Cave, Kentucky / drawn by Horace C. Hovey.. BRBL_00542. 1907. https://collections.library.yale.edu/catalog/15952219.

APA, 6th edition

Hovey, Horace Carter, 1833-1914. (["BRBL_00542"])(1907)[Guide map of the Mammoth Cave, Kentucky / drawn by Horace C. Hovey.]. https://collections.library.yale.edu/catalog/15952219.