In Russian. Kogan, Sarra Yakovlevna. Seismic energy and methods of its definition. Moscow: Science, 1975. Seysmicheskaya energiya i metody ee opredeleniya. In Russian /Seismic Energy and Methods of Defining it. 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. SKU6986020