Pilkey, Dav  1966 <br/><br/>
Ricky Ricotta's mighty robot vs. the mecha-monkeys from Mars 
Dav Pilkey 
 - Revised edition. 
 - London  Scholastic Inc.  2014 
 - 140 pages 
<br/><br/><label>Dewey Class. No.: </label>Year 5 [FIC]