00631nam a2200193Ia 4500 IN-BaIIA 211028s9999 xx 000 0 eng d IIA Library 537.531 PIR Pirenne, M. H. 1893 The diffraction of X-rays and electrons by free molecules M. H. Pirenne Cambridge Cambridge University Press 1946 xii, 160p. The cambridge series of physical chemistry Electron Diffraction 1894 NASA Thesaurus X-Ray Diffraction 1895 BK 886 886 0 0 0 0 BAN KOD GEN 0000-00-00 8.75 0 537.531/ PIR 913 2021-11-05 8.75 0000-00-00 BK Rs. 8.75