Royal yachts / 
National Maritime Museum. 
 - 3rd ed. /  by A.P. McGowan. 
 - London :  H.M.S.O.,  1977. 
 - [2], 34p. 
<br/><br/><label>ISBN: </label>011290291X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Yachts and yachting--History.--Great Britain
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Great Britain--Government vessels.