Railway co-operation, An investigation on railway traffic associations and a discussion of the degree and form of co-operation that should be granted competing railways in the United Statess / By Charles S. Langstroth and Wilson Stilz, with an introduction by Martin A. Knapp ...
- Philadelphia, The University, 1899.
xv p., 1 l., 7-210 p. 26 cm.
- Publications of the University of Pennsylvania. Series in political economy and public law, no. 15.