TY - BOOK AU - National Council of Educational Research and Training TI - Physics Part I : Textbook for Class XI SN - 81-7450-508-3 U1 - 530 PY - 2006/// CY - New Delhi PB - National Council of Educational Research and Train N1 - National Council of Educational Research and Training: Physics Part I : Textbook for Class XI. New Delhi. National Council of Educational Research and Train, 2006. 81-7450-508-3--(530NAT) ER -