Canonigo, Cristina Santos. <br/><br/>
Book of w's :  who? what? when? where? why? : informative ! educational ! / 
C.S. Canonigo. 
 - Manila :  Jucip Books,  c1999. 
 - ix, 208 p. 
<br/><br/><label>ISBN: </label>9715980018 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Questions and answers