Arnold, Virginia A. <br/><br/>
Observing / 
Virginia A. Arnold et al. 
 - London ;  New York :  Collier Macmillan Publ. :  Macmillan Publ. Co. ,  1989. 
 - 400 p. 
 - Macmillan Reading Program  Level 9 .
<br/><br/><label>ISBN: </label>0-02-174850-0 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English