In Russian. Druzhinin, Nikolai Ilyich. On the state and prospects of development of electric modeling methods in hydromelioration and in adjacent areas. Leningrad: Lenizdat, 1971. O sostoyanii i perspektivakh razvitiya metodov elektricheskogo modelirovaniya v gidromelioratsii i v smezhnykh s ney oblastyakh. In Russian /Status and Prospects for the Development of Electrical Modelling Methods in Hydromelioration and Related Areas . All images are for identification of editions only. Several books of the same edition may be available. Please feel free to request photos of available books. SKU7116779
Reference : 7116779
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