Proceedings - System Safety Symposium, Seattle, Washington, 8. - 10.6.1965
Railroad Research Bulletin. Volume 1, Number 2, Autumn 1974
Economic Study of Alternative Modes for Rail Traffic and Their Costs
Railroad Research Bulletin, Volume 2, Number 1, Spring 1975
Economic Analysis of the Port of Chicago. Volume V. Port Development Plan
An economic history of five midwestern railroads.
Economic Cases of the Civil Aeronautics Board, Volume 84, Part II