1.
The Elements of Railway Operating Economics - Scholar's Choice Edition
by David R. Lamb and John A. J...
ISBN: 9781297218316
List Price: $26.75
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Elements of Railway Operating Economics
by Travis, David R. Lamb And J...
ISBN: 9780469821569
List Price: $14.95
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The Elements of Railway Operating Economics
by David R. Lamb and John A. J...
ISBN: 9780469821576
List Price: $24.95