TY  - BOOK
AU  - El-Kareh,A.B.
AU  - El-Kareh,J.C.J.
TI  - Electron beams, lenses, and optics
SN  - 0122380010
AV  - QC447 .E53
U1  - 537.56 ELK 1970 
PY  - 1970///
CY  - New York
PB  - Academic Press
KW  - Electron optics
N1  - Includes bibliographies and index
ER  -