Ancient historical edicts at Lhasa, and the Mu Tsung / Khri Gtsug Lde Brtsan Treaty of A.D. 821-822 from the inscription at Lhasa / 
by H.E. Richardson. [With plates.] 
 - London,   1952. 
 - 86 pages;  illustrations;  22 cm 
 - Prize publication fund  v. 19 .