MLA

Hartley, W. M. B. The Neosho Valley ... 0AD. https://collections.library.yale.edu/catalog/2064393.

APA, 6th edition

Hartley, W. M. B. (0 C.E.). The Neosho Valley ... [Maps in books, Pamphlets, Promotional literature]. https://collections.library.yale.edu/catalog/2064393.