Somerville, William <br/><br/>
Block 6 galaxies and the universe 

 - Walton Hall  ; The Open University  , 1985 
 - 77p. 
<br/><br/><label>ISBN: </label>0335161804  £6.95 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Space<br/>The Universe
<br/><br/><label>Dewey Class. No.: </label>523.1  / SOM