Willis, Thayer. <br/><br/>
The Frozen world / 
Thayer Willis. 
 - London :  Aldus,  1971. 
 - 191 p.billus. (some col.)., facsims., maps (some col.), ports. (some col.).c27 cm. 
 - Aldus encyclopedia of discovery and exploration .
<br/><br/><label>ISBN: </label>0490002331 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Polar regions--History.
<br/><br/><label>LC Class. No.: </label>G580  / .W54 1971