GovInfo: GovInfo is the Government Publishing Office's main web portal for providing "free public access to official publications from all three branches of the Federal Government.".
Through Govinfo, you are able to
* Search for documents and publications
* Browse for documents and publications
* Access metadata about documents and publications
* Download documents and publications in multiple renditions or file formats
The Monthly Catalog of United States Government Publications, 1895-1976 was established by the Printing Act of January 12, 1895. It is issued each month by the Superintendent of Documents for the Government Printing Office, and catalogs all publications of the United States government, including those of the Congress and all executive departments (with the exception of administrative and confidential or restricted documents). The government prints thousands of documents each year, and many of these are sent to depository libraries.
Records for all publications since July 1976 have been available online
at the GPO's website link to external site, this link will open in a new
window, but earlier issues have generally only been available in print
or on microfilm. This online version will make all issues of the Monthly
Catalog from 1895 to June 1976 available online, both as keyed full
text records and as page images of the original printed catalog.
Issues of the Monthly Catalog up to June 1976 are arranged
alphabetically by department or issuing agency. Publications sent to
depository libraries are identified, and the record for each publication
includes two or more identification numbers. The entry number for each
item (together with the year) allows it to be located within the
catalog. These are a simple numeric series with the first item appearing
in the January catalog each year being number 1. Each item is also
given a Superintendent of Documents (SuDoc) classification number. This
is a unique identifier for each publication which begins with an
alphabetic identifier for the issuing department.