00571nam a2200193Ia 4500 IN-BaIIA 211028s9999 xx 000 0 eng d IIA Library 535.82 COS Cosslett, V. E. 2060 The electron microscope V. E. Cosslett London Sigma Book 1947 viii, 128p. Sigma introduction to science Electron microscopes 2061 NASA thesaurus Optical microscopes 2062 BK 957 957 0 0 0 0 BAN BAN GEN 0000-00-00 5.25 0 535.82/ COS 991 2021-11-05 5.25 0000-00-00 BK Rs. 5.25