Preliminary inventory of the records of United States participation in international conferences, commissions, and expositions :
(Record group 43) /
compiled by H. Stephen Helton.

APA Citation

United States. National Archives and Records Service., Helton, H. Stephen. (1955). Preliminary inventory of the records of United States participation in international conferences, commissions, and expositions: (Record group 43). Washington: National Archives, National Archives and Records Service, General Services Administration.

MLA Citation

United States. National Archives and Records Service, and H. Stephen Helton. Preliminary Inventory of the Records of United States Participation In International Conferences, Commissions, And Expositions: (Record Group 43). Washington: National Archives, National Archives and Records Service, General Services Administration, 1955.