TY  - BOOK
AU  - INTERNATIONAL
TI  - MCGRAW HILL ENCYLOPEDIA OF SCIENCE AND TECHNOLOGY VOLUME - 4 DAC-ELEC
SN  - 0-07-079280-1
U1  - 503.21 MCG'I 
PY  - 1977///
CY  - NEWYORK
PB  - MCGRAW HILL
ER  -