by L.D. Landau and E.M. Lifshitz ; translated from the Russian by J.B. Sykes and J. S. Bell ; : [hard], : flexicover (pbk). -- 1st ed.. -- Pergamon Press, 1974. -- (A shorter course of theoretical physics / by L.D. Landau and E.M. Lifshitz ; translated from the Russian by J.B. Sykes and M. Hamermesh ; v. 2).