Randal, Allison. <br/><br/>
Perl 6 and Parrot essentials / 
Allison Randal, Dan Sugalski, and Leopold T�eotsch. 
 - 2nd ed. 
 - Beijing :  O'Reilly,  2004. 
 - xi, 279 p. ;  23 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>059600737(pbk. ) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Perl (Computer program language)