Hesse H. Walter <br/><br/>
Our evolving universe 
Walter H. Hesse 
 - California  Dickenson publishing company.  1977 
 - xvl,481p. ills;  pbk 
<br/><br/><label>ISBN: </label>082210184X 
<br/><br/><label>LC Class. No.: </label>QB45.H59 1977