Teaching Science with Whales :  A guide for Teachers, Students and Parents / 
National Wildlife Federation ... [et al.]. 
 - Estados Unidos :  Leighton Taylor and Associates, St. Helena, California,  [1996]. 
 - 32 p. ;  il. ;  28 cm. 
<br/><br/><br/>Inglés 
<br/><br/><label>ISBN: </label> Normal 
<br/><br/><label>Subjects--Index Terms: </label>Whales Ballenas 
<br/><br/><label>Dewey Class. No.: </label>507.8