Sprigg, Christopher,  1907-1937 <br/><br/>
The airship :  its design, history, operation and future / 
by Christopher Sprigg 
 - London :  Sampson Low,  1931 
 - 248 p. ;  22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Airships