[Geological report of McKean and Elk companies]

MLA

Ashburner, Charles A. and McKean and Elk Land and Improvement Company. [Geological report of McKean and Elk companies]. [Place of publication not identified] : [publisher not identified], 1857-1879.

APA

Ashburner, C. & McKean and Elk Land and Improvement Company. (1857). [Geological report of McKean and Elk companies]. [Place of publication not identified] : [publisher not identified].

Chicago

Ashburner, Charles A. and McKean and Elk Land and Improvement Company. [Geological report of McKean and Elk companies]. [Place of publication not identified] : [publisher not identified], 1857-1879.