Chiswell Ian Course in formal languages, automata and groups. Chiswell Ian - London Springer 2009 - ix,157p. cm. ISBN: 2464.3245000000002 Standard No.: 99205 Source: 27, 16/09/2009, Better Book Service Textual Subjects--Topical Terms: Mathematics Dewey Class. No.: D6,8(B), P9