Railway co-operation an investigation of railway traffic associations and a discussion of the degree and form of co-operation that should be granted competing railways in the United States - Langstroth, Charles Souder (The University, 1899)
"Railroad co-operation in the United States"--P. 5. - "Railway co-operation in the United States"--P. 103. - Includes bibliographical references and index. - OCLC, 22483580. - Reproduction of original from Harvard Law School Library