Llewellyn V. Ludy

title	media type	ISBN-13	year of publication
Air Brakes: An Up-to-Date Treatise on the Westinghouse Air Brake as Designed for Passenger and Freight Service and for Electric Cars, With Rules for Care and Operation	Hardcover	978-0-267-84964-2	2018
Air Brakes: An Up-to-Date Treatise on the Westinghouse Air Brake as Designed for Passenger and Freight Service and for Electric Cars, With Rules for Care and Operation	Paperback	978-1-332-09794-4	2018
Steam Engine Indicators and Valve Gears: A Practical Presentation of Modern Testing, Appliances and Methods Used to Produce, Maximum Efficiency as Applied to the Steam Engine	Hardcover	978-0-365-26789-8	2019
Steam Engine Indicators and Valve Gears: A Practical Presentation of Modern Testing, Appliances and Methods Used to Produce, Maximum Efficiency as Applied to the Steam Engine	Paperback	978-1-330-04298-4	2019
The Air-Brake: A Practical Presentation of the Modern Developments of the Air-Brake for Steam and Electric Railroad Trains	Hardcover	978-0-266-28287-7	2018
The Air-Brake: A Practical Presentation of the Modern Developments of the Air-Brake for Steam and Electric Railroad Trains	Paperback	978-1-332-33221-2	2018