Zoom time :  SMP 11-16  
Cambridege University Press 
 - Britain :  Cambridge University press  1990 
 - 16p. :  ill. ;  22cm 
 - SMP11-16 .
<br/><br/><label>ISBN: </label>0521396735 0521397367 
<br/><br/><label>Dewey Class. No.: </label>421.24  / ALL