TY - BOOK AU - Verma,H.C. TI - Concepts of physics (part 1.) SN - 9788177091878 (pbk.) AV - S619.W38 V47 2001 U1 - 530 21 PY - 1999/// CY - New Delhi PB - Bharati Bhawan KW - Physics N1 - Includes bibliographical references and index ER -