MLA

Cram, George Franklin, 1841-1928. Cram's new county and railroad map of Texas and Indian Territory : showing latest government surveys &c &c / Geo. F. Cram, lith.. BRBL_00526. 1877. https://collections.library.yale.edu/catalog/15811503.

APA, 6th edition

Cram, George Franklin, 1841-1928. (["BRBL_00526"])(1877)[Cram's new county and railroad map of Texas and Indian Territory : showing latest government surveys &c &c / Geo. F. Cram, lith.]. https://collections.library.yale.edu/catalog/15811503.