Balmaceda, Lemyrose B.  <br/><br/>
Environmental awareness, attitudes and practices of Tinguians 
Lemyrose B. Balmaceda 
 -  2004 
 - xiii, 165 leaves   28 cm. 
<br/><br/> Thesis (MA Education-Science Education) -- Mariano Marcos State University-Graduate School;, Laoag City  
<br/><br/>Bibliography: leaves 142-144