Salamanca, Ma, Dolores <br/><br/>
Tour guiding as a profession / 
Ma, Dolores Salamanca. 
 - Intramuros,Manila :  Mindshapers,  2006. 
 - xiii, 137 p.:   ill.  23 cm. 
<br/><br/><br/>English 
<br/><br/><label>ISBN: </label>978-971-0445-09-7 
<br/><br/><label>LC Class. No.: </label>910.23 Sa31t