Tolkappiyar.  P S Subrahmanya Sastri <br/><br/>
Tolkappiyam - the earliest extant Tamil grammar - With a short commentary in English 

 - 2nd ed. 
 - Chennai  Kuppuswami Sastri Research Institute  1999 
 - 105 
 - Volume I Eluttatikaram .
<br/><br/> the earliest extant Tamil grammar : with a short commentary in English 
<br/><br/><label>ISBN: </label>8185170223 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Tamil language--Grammar<br/>Tamil poetry<br/>Tolkappiyar.
<br/><br/><label>Dewey Class. No.: </label>494.8115 T577 T  / 100449