Morse,Philip M and Feshbach,Herman. Methods of Theoretical Physics Chapters 1 to 8 Textual Documents - 1953. - Newyork: McGraw-Hill Book Company,INC., 1953. - XXII; 997p.+xl.: 01236. Subjects--Uniform Titles: PhysicsVector Fields,Bibliography. Dewey Class. No.: 530.151 MOR