TY  - BOOK
AU  - Xavier, S.P. Eugene.
TI  - Theory of automata, formal languages and computation
SN  - 81-224-1508-3
AV  - ComSc QA 267.7 
CY  - New Delhi
KW  - Computational complexity
KW  - Machine theory
N1  - Includes bibliographical references and index
ER  -