Library of Congress classification. Z. Bibliography. Library science. Information resources

Manylion Llyfryddiaeth
Awduron Corfforaethol:	Library of Congress, Library of Congress. Policy and Standards Division
Fformat:	Llyfr
Iaith:	Saesneg
Rhifyn:	[2009 edition].
Pynciau:	Classification, Library of Congress. Classification > Books > Bibliography. Classification > Books > Library science. Classification > Books > Information resources.