Agar, Herbert,  1897-1980. <br/><br/>
The darkest year 
Britain alone, June 1940-June 1941 
 - Garden City, N.Y. :  Doubleday,  1972 
 - 228 p. :  illus. ;  23 cm. 
<br/><br/> First published in 1972 under title: Britain alone, June 1940-June 1941 
<br/><br/>Bibliography: p. 211-217 
<br/><br/><label>ISBN: </label>038504500X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>World War--United Kingdom--1939-1945<br/>World War--United States--1939-1945