Annual report of the Archaeological Survey of India, Eastern Circle for ... .
Archaeological Survey of India.Eastern Circle (1920-)
Calcutta : Supt. Govt. Printing, India,
1922-
"In accordance with Government order No. 343-A. & E., dated the 31st December 1919 ... this Circle with headquarters at Calcutta was separated from the old Eastern Circle (now Central Circle) at Patna since April 1920." -- p. [1]
Archaeological Survey of India. Eastern Circle (1920-)
Annual report of the Archaeological Survey of India, Eastern (now Central) Circle