[pdf] Course of Theoretical Physics. Volume 7 L. D. Landau, E.M. Lifshitz

A comprehensive textbook covering not only the ordinary theory of the deformation of solids, but also some topics not usually found in textbooks on the subject, such as thermal conduction and viscosity in solids and various problems on the theory of elastic vibrations and waves. The third edition includes a new chapter on the mechanics of liquid crystals.