The railroads and their environment:
six lectures
delivered by Logan G. McPherson, lecturer on transportation, at Johns Hopkins university, 1906.

APA Citation

McPherson, L. G. (Logan Grant). (1909). The railroads and their environment: six lectures. [n.p..

MLA Citation

McPherson, Logan G. (Logan Grant), 1863-1925. The Railroads And Their Environment: Six Lectures. [n.p., 1909.

Warning: These citations may not always be complete (especially for serials).