Katz, Nevin <br/><br/>
Mysteries of the Earth  : featuring the comic strip Dr. Birdley investigates 

 - 94 pages :  illustrations 
<br/><br/> Middle and high school. 
<br/><br/><label>ISBN: </label>9780865305434 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology--Study and teaching (Middle school)--Activity programs<br/>Geology--Study and teaching (Secondary)--Activity programs
<br/><br/><label>Dewey Class. No.: </label>550