ISBN 1179496493 books & textbook
Steam Engine Valves and Valve Gears: Describing the Function, Construction and Operation of Valves and Valve Gears, and the Construction and Use of ... Fitters and Others (Afrikaans Edition)
Nabu Press /2011-09-03 Paperback / 136 Pages
isbn-10: 1179496493 / isbn-13: 9781179496498