TY - BOOK AU - Gopalakrishnan, K. TI - Atomic and nuclear physcics SN - 333900073 U1 - 539.7 PY - 1973/// CY - New Delhi PB - Macmillan company of India Ltd KW - Physics KW - Radioactivity KW - Nucleus KW - Spectrometers KW - Cosmic rays ER -