Casterad Seral, Jaime. <br/><br/>
Actividades en la naturaleza 
Jaime Casterod Seral, Roberto Guillén Correas, Susanba Lapetra Costa 
 - Ed. 2002 
 - Barcelona  INDE Publicaciones  c2002. 
 - 104 p.  ill. (some col.)  24 cm. 
<br/><br/>Includes bibliographical references (p. 103-104). 
<br/><br/><label>ISBN: </label>8495114364 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Outdoor life<br/>Nature study--Activity programs.