Wehr, M. Russell 1902- Physics of the atom / by M. Russell Wehr and James A. Richards, Jr - 2nd ed. - Reading, Mass : Addison-Wesley, 1972 - xiii, 482 p. : ill. ; 24 cm. - Addison-Wesley series in physics . Includes bibliographies. LCCN: 67-019432 //r903 Subjects--Topical Terms: Matter--ConstitutionNuclear physics