00432nam a22001577a 450000500170000001000150001702000250003203500140005703700130007108200080008410000150009224500490010726000350015627000510019130000320024220170524145020.0  aENG-118380  a978935027149c750.00  aEN-101912  bDBAD/PUB  a530  aS B Mathur  aCore physics /cby S B Mathur and Arun Kumar  aNew DelhibBharti bhawanc2017  a4271/3Ansari Road, Daryaganj, New Delhi 110002  avarious pages.c28cm. (pbk)