Bull, Geoffrey T.,  1921- <br/><br/>
When iron gates yield. 

 - Chicago :  Moody Press,  [1955?] 
 - 254 p. :  ill., maps, port. ;  22 cm. 
<br/><br/> An account of the author's missionary work in Tibet and his imprisonment by the Chinese Communists. 
<br/><br/><label>Subjects--Personal Names: </label><br/>Bull, Geoffrey T., 1921-