Columbia subject headings:
Government information--Technological innovations--United States.
Printing, Public--Technological innovations--United States.
Harvard subject headings:
Depository libraries--United States.
Electronic publishing--Government policy--United States.
Electronic publishing--United States
Federal government--United States--Information services.
Government information agencies--United States.
Government information--United States
Information storage and retrieval systems--Government publications
Libraries and electronic publishing--United States.
United States. Government Printing Office
Princeton subject headings:
Depository libraries--United States.
Electronic publishing--United States.
Government information agencies--United States.
Government information--United States.
Information storage and retrieval systems--Government publications.
Libraries and electronic publishing--United States.
United States. Government Printing Office