Cite

Plan of the city of Houston and environs, Texas / drawn by E.F. Gray.

MLA

Plan of the City of Houston and Environs, Texas / Drawn by E.F. Gray. [publisher not identified], 0AD. https://collections.library.yale.edu/catalog/16664831.

APA, 6th edition

Plan of the city of Houston and environs, Texas / drawn by E.F. Gray. (0 C.E.). [Annotations (Provenance)--19th century, Cadastral maps.]. [publisher not identified], https://collections.library.yale.edu/catalog/16664831.