TY  - BOOK
AU  - Heilger,Edward M.
TI  - Library automation: experiance,methodology,and technology of the library as an information system
T2  - Mcgraw-Hil series in library education
U1  - RR 2:(D6,77) L1H 
PY  - 1971///
CY  - New York
PB  - Mcgraw-Hil
N1  - Includes bibliography and index
ER  -