Hirschfeld, Robert <br/><br/>
101 ways to boost your science skills / 
Robert  Hirschfeld. 
 - New York :  Scholastic ,  1998. 
 - [ ] p.: 
<br/><br/><br/>English 
<br/><br/><label>ISBN: </label>0-439-69759-x 
<br/><br/><label>LC Class. No.: </label>500.7 H61o