Ewart, William Dunlop. <br/><br/>
Hydroplanes and hovercraft / 
William Dunlop Ewart ; illustrated by Kenneth M. Sibley. 
 - London :  Frederick Muller Limited,  1962. 
 - 141 p. :  ill. ;  20 cm. 
<br/><br/> Includes index. 
<br/><br/>392  392 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hydroplanes.<br/>Ground-effect machines.
<br/><br/><label>Dewey Class. No.: </label>629.13347 / E18h