V.K Electron optics and the electron microscope / V. K. Zworykin, - New York, J. Wiley & sons, 1945. - xi, 766 p.: illi.: diagrs. 22 cm. 1 0 0 ISBN: + Source: 1985-411 Subjects--Topical Terms: Electron optics. Electron microscopes. LC Class. No.: QC 447.E5 1945