Salomaa, Arto <br/><br/>
Computation and Automata   
by Arto Salomaa 
 - Cambridge  Cambridge University Press  1985 
 - xiii,284p 
 - Encyclopedia of Mathematics and its Applications No.25 .
<br/><br/><label>ISBN: </label>9780521302456 
<br/><br/><label>Dewey Class. No.: </label>511.3  / N85