Abell, George O.  1927-1983. <br/><br/>
Exploration of the universe / 
George O. Abell. 
 - 4th ed. 
 - Philadelphia :  Saunders College Pub.,  c1982. 
 - viii, 721 p., [32] p. of plates :  ill. (some col.) ;  26 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0030585023 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy.
<br/><br/><label>LC Class. No.: </label>QB45  / .A16 1982