Siazon-Lorenzo, Carmelita <br/><br/>
Korespondensya opisyal at pagsulat ng ulat sa wikang Filipino / 
by Carmelita Siazon-Lorenzo and Diosdado F. Cruz 
 - Quezon City:  Katha Publishing Co., Inc.,  c1997 
 - 189p.:  ill.;  25.5 cm. 
<br/><br/><label>ISBN: </label>971-574-003-0 
<br/><br/><label>Dewey Class. No.: </label>BFil. 808.0666  / Si1k