Cite

Road map of Montgomery County, Texas / by W.J. Kelly, civil eng.

MLA

Kelly, W. J. Road Map of Montgomery County, Texas / by W.J. Kelly, Civil Eng. Texas Highway Dept.?, 0AD. https://collections.library.yale.edu/catalog/15827502.

APA, 6th edition

Kelly, W. J. (0 C.E.). Road map of Montgomery County, Texas / by W.J. Kelly, civil eng. [Maps]. Texas Highway Dept.?, https://collections.library.yale.edu/catalog/15827502.