Nock, O. S.  1905-1994 <br/><br/>
British steam locomotives at work / 
by O. S. Nock. 
 - London :  Allen & Unwin,  1947. 
 - 260 p. :  ill., plates ;  21 cm. 
<br/><br/><label>LCCN: </label>B67-13885 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Locomotives--History--Great Britain<br/>Railroads--History--Great Britain
<br/><br/><label>LC Class. No.: </label>TJ603  / .N552 
<br/><br/><label>Dewey Class. No.: </label>625.2