CIS index to unpublished US Senate committee hearings :
18th Congress-88th Congress, 1823-1964.
APA Citation
Congressional Information Service. (1986). CIS index to unpublished US Senate committee hearings: 18th Congress-88th Congress, 1823-1964. Bethesda, MD: Congressional Information Service.
MLA Citation
Congressional Information Service. CIS Index to Unpublished US Senate Committee Hearings: 18th Congress-88th Congress, 1823-1964. Bethesda, MD: Congressional Information Service, 1986.
Warning: These citations may not always be complete (especially for serials).