Cite

Map showing property adjacent to the city of Helena / compiled by Jno. S.M. Neil ; drawn by Reeder & Helmick.

MLA

Reeder, and Helmick. Map Showing Property Adjacent to the City of Helena / Compiled by Jno. S.M. Neil ; Drawn by Reeder & Helmick. J.L. Smith, 0AD. https://collections.library.yale.edu/catalog/15814924.

APA, 6th edition

R., & H. (0 C.E.). Map showing property adjacent to the city of Helena / compiled by Jno. S.M. Neil ; drawn by Reeder & Helmick. [Maps]. J.L. Smith, https://collections.library.yale.edu/catalog/15814924.