CIS/Index user handbook for librarians and researchers using Congressional publications.
APA Citation
Congressional Information Service. (1979). CIS/Index user handbook for librarians and researchers using Congressional publications. Washington: Congressional Information Service.
MLA Citation
Congressional Information Service. CIS/Index User Handbook for Librarians And Researchers Using Congressional Publications. Washington: Congressional Information Service, 1979.
Warning: These citations may not always be complete (especially for serials).