Theory of Elasticity, Third Edition: Volume 7 (Course of Theoretical Physics) 3rd edition by Landau, L D, Pitaevskii, L. P., Kosevich, A. M., Lifshitz, E (1986) Paperback
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.