Arnold E., Lacour I.L. DC machines. In two volumes. In Russian /Arnold E., Lakur I.L. Mashiny postoyannogo toka. V dvukh tomakh. Volume 1-theory and research. Volume 2-construction, calculation and application. M., L. OGIZ-Gostekhizdat 1931. 496 and 508 p. We have thousands of titles and often several copies of each title may be available. Please feel free to contact us for a detailed description of the copies available. SKUalb63a15dd7877e1b31.