TY  - BOOK
AU  - Ginsburg,Seymour, x
AU  - x
TI  - The mathematical theory of context free languages: x
SN  - x
U1  - 510/GIM 
PY  - 1966///
CY  - N.Y.
PB  - McGraw - HJill
KW  - Mathematics
N1  - x
ER  -