TY - BOOK AU - Richtmyer,F.K. AU - Kennard,E.H. AU - Cooper,John N. TI - Introduction to modern physics SN - 0070995427 AV - QC 20 .R5 1976 PY - 1976/// CY - New Delhi PB - Tata McGraw-Hill KW - modern physics N1 - Includes bibliographical references and index ER -