TY - BOOK AU - Lal , K.C. . AU - Ahmad, S.I. . TI - A Text Book of Modern Physics SN - 81-219-1533-3 U1 - 530 PY - 1997/// CY - New Delhi PB - S. Chand & Company KW - Physics KW - PG-Physics KW - T/G-Physics N1 - Index ER -